Showing posts with label News. Show all posts
Showing posts with label News. Show all posts

Thursday, December 4, 2014

Lansiranje Oriona / Launch of Orion

Broadcast live streaming video on Ustream


Lansiranje Oriona, prvog pravog svemirskog broda koji će ljudsku posadu ponovo odvesti na Mjesec ali takođe i na asteroide u bliskom prolasku pokraj Zemlje i možda na Mars.

Launch of NASA Orion, first real space ship which will take human crews back to Moon and also to NEO asteroids and maybe to Mars.

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UPDATE:

Lansiranje je kancelirano za danas. U svakom slučaju sjutra će biti novi pokušaj u isto vrijeme. Postojao je cijeli niz manjih problema danas, od vremenskih uslova do raznih alarma sa rakete koji su spriječili lansiranje. U svakom slučaju sjutra je novi dan i nadam se da će imati više sreće.

So, the launch was canceled for today. A range of alarms and weather conditions had plagued this launch window so ultimatly it was postponed for tomorrow. Anyway see ya all  same time tomorrow and hope for better luck.

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UPDATE:

Za one koji nisu pratili lansirenje direktno, evo videa sa NASAKennedy kanala na Youtube.

For all those whom didn't follow the launch live, here is clip of it from NASAKennedy Youtube channel.





Saturday, November 15, 2014

Četvrti dan na kometi, Philae spava / 4th day on a comet, Philae is asleep

Čitavu noć je trajala borba da se mali lander održi u funkcij i izvuku podaci. Na žalost na kraju su baterije izdahnule ali ne prije nego li su svi podaci izvučeni, mali lander spava, barem za sada. Međutim nekoliko bitnih komandi je uspiješno poslato landeru prije nego li su se baterije potrošile i možemo očekivati da će nam se Philae javiti ponovo idućih mjeseci. Naime dvije bitne komande su uspiješno izvršene, lander se izdigao 4 cm i rotirao oko 35° što bi trebalo dati više energije sa solarnih panela. Međutim za sada čak ni ta količina energije nije dovoljna za funkciju i lander je prešao u hibernaciju. Zahvaljujući ovim manevrima za očekivati je da će se lander ponovo javiti i nastaviti sa istraživanjima kasnije, kada kometa priđe bliže Suncu.

The fight to keep little lander awake and to retrieve all the data lasted all night. Unfortunately on the end the batteries went empty and little lander went asleep but not before all data was retrieved. Philae is asleep, for now. A set of successful commands were sent to the lander to lift the body for 4 cm and turn for 35°. Those moves will give the lander a bit more of the sunlight to operate, but not now, later, when comet comes closer to the Sun, Philae might receive enough energy to resume its work, to collect data from the comet and send it back home.

Mjesto prvog spuštanja Philae landera,
zeleni kružić predstavlja mjesto predviđenog spuštanja
 od strane tima koji je upravljao spuštanjem
Place of first touchdown of Philae,
green circle represent the predicted spot
of landing by the Earth team.
Iako je lander radio samo 3 dana, planirana misija je obavljena, Philae je uspio izvršiti planirani niz eksperimenata i svi podaci su poslati na Zemlju samo nekoliko minuta prije hibernacije u bukvalno filmskoj napetosti u sjedištu operacija u Njemačkoj.

The lander operated only for 3 days but planed mission was successful. Philae managed to preform planed chain of experiments and send data back to Earth, just minutes before he run out of power in what seemed like movie tension back in OPS on Earth in Germany.

Nevjerovatna avantura malog landera je trenutno pauzirana ali po svemu sudeći nije završena.

The incredible adventure of this small lander is over for now but not ended.

Što se sve izdogađalo? / What we all witnessed all this days?

Teško je napraviti rezime, sve se izdogađalo tako brzo i frenetično. Philae je doživio kvar i nije se uspješno usidrio na kometi. Međutim ono što se dogodilo tokom spuštanja niko nije očekivao. Philae je odskočio sa površine, prvo jednom i taj skok je trajao više sati i išao u visinu skoro 1 kilometar, (novi rekord u skokovima) zatim je odskočio drugi put i taj skok je trajao 7 minuta da bi na kraju se smirio u podnožju litice obližnjeg kratera.

It is difficult to give a full resume, all of it happen so fast in a frantic sequence of events with nerve wracking ups and downs, there was joy, happy crying and probably a lot of cursing (although i don't have any evidence of cursing I just assume it). Philae had a malfunction and failed to anchor on the comet. What happen next nobody expected. The lander bounced of surface, once, that bounce lasted few hours and brought up the lander 1 km (0.6 mile) above surface, (the highest jump ever preformed, a new record, anybody?) than it jumped again and that jump lasted for 7 minutes before he came to rest near a cliff of nearby crater.

Međutim tokom prvog dodira sa površinom lander je automatski ušao u istraživački mod i počeo ispitivati površinu. Ovo znači da su naučnici na zemlji dobili podatke sa ne jednog mjesta sletanja već sa tri kao i podatke iz preleta. Trenutno svi ti podaci su uspiješno primljeni na Zemlji i u fazi su proučavanja.

But at the first touchdown the lander went in to science mode and started collecting data from surface. This means that scientists got date from not one but three landing sites as also all the data during the unexpected jumps. At the moment all those data have been received back on Earth and are already in scientist hands.

Fotografija koja pokazuje kako baterije otkazuju
Photo of batteries failing
Na žalost finalni položaj landera pokraj litice nije dobar jer drži u sjenci lander veći dio kometskog dana. Ovo znači da se lander morao ograničiti na trošenje unutarnjih baterija da obavi ostala istraživanja.

Unfortunately the final touchdown place was far from optimal as the nearby cliff keeps most of the sunlight out of react to little lander and Philae is in shadow most of the comets day. This means that Philae had to use its internal batteries to preform its duties.

I pored toga lander je uspio obaviti čitavu primarnu sekvenciju ispitivanja, radeći besprijekorno do posljednjeg wata raspoložive energije i sve je to poslao na Zemlju.

Against this hard adversity the lander managed to preform its primary science sequence, working without a glitch through all of it, to the last watt of available energy and send all the results back home.

Ovo je quote sa službenog bloga: / This is a quote from official blog which is covering the mission:

http://www.esa.int/Our_Activities/Space_Science/Rosetta/Pioneering_Philae_completes_main_mission_before_hibernation

15 November 2014
Rosetta’s lander has completed its primary science mission after nearly 57 hours on Comet 67P/Churyumov–Gerasimenko. 
After being out of communication visibility with the lander since 09:58 GMT / 10:58 CET on Friday, Rosetta regained contact with Philae at 22:19 GMT /23:19 CET last night. The signal was initially intermittent, but quickly stabilised and remained very good until 00:36 GMT / 01:36 CET this morning. 
In that time, the lander returned all of its housekeeping data, as well as science data from the targeted instruments, including ROLIS, COSAC, Ptolemy, SD2 and CONSERT. This completed the measurements planned for the final block of experiments on the surface.

 Ovo znači da je Philae i pored nedaća uspiješno obavio cijeli svoj primarni zadatak i poslao podatke nazad i sada naučnici imaju čitav niz novih informacija o kometi koji će biti proučavani idućih dana.
ROLIS, COSAC, Ptolemy, SD2 i CONSERT su nazivi eksperimenata i mjerenja koje je Philae obavio tokom ovih 3 dana avanture, a oni znače:

ROLIS, COSAC, Ptolemy, SD2 and CONSERT are names of experiments and measurements taken by Philae during this few days of its adventure and those mean:

1. ROLIS: Rosetta Lander Imaging System, CCD kamera visoke rezolucije koja je snimala panoramu i tokom spuštanja.
2. COSAC: COmetary SAmpling and Composition, gasni hromatograf i maseni spektrometar odnosno kombinacija uređaja za analizu uzoraka iz okolnog terena. Ovo znači da je philae uspješno izbušio površinu komete i ispitao uzorke iz tla.
3. Ptolemy: Mjerač stabilnih izotopa u uzorku, odnosno uređaj koji će dati odgovor dali su naši oceani porijeklom sa kometa (odnosno možda najbitniji razlog slanja ove cijele misije)
4. SD2: Drill, Sample, and Distribution subsystem, odnosno kratko prevedeno bušilica je odradila svoj zadatak perfektno, da buši onamo gdje niko nikada nije bušio.
5. CONSERT: COmet Nucleus Sounding Experiment by Radiowave Transmission experiment, odnosno radarski odjek sa Rozeta sonde u orbiti kroz tijelo komete kojeg prima Philae koji mapira unutrašnju strukturu komete.

1. ROLIS: The Rosetta Lander Imaging System is a CCD camera which takes pictures of its surroundings and panorama.
2. COSAC: The COmetary SAmpling and Composition instrument is a combined gas chromatograph and time-of-flight mass spectrometer to perform analysis of soil samples and determine the content of volatile components.
3. Ptolemy: An instrument measuring stable isotope ratios of key volatiles on the comet's nucleus, essencilay this is one of the main scopes of this mission, this instrument is used to determinate if water on Earth comes from comets.
4. SD2: Drill, Sample, and Distribution subsystem, well the name says it all, it is the drill and it did its job, To drill where no man has drilled before.
5. CONSERT: The COmet Nucleus Sounding Experiment by Radio-wave Transmission experiment is using electromagnetic wave propagation to determine the comet's internal structure. A radar on Rosetta will transmit a signal through the nucleus to be received by a detector on Philae.

Na žalost nekoliko drugih eksperimenata nije obavljeno poput, APXS, ÇIVA, MUPUS, ROMAP i SESAME koji ovise o kontinuiranom radu landera. Međutim ovo ne znači da se ta ispitivanja neće uraditi s obzirom da postoji velika šansa da se Philae aktivira kada kometa dođe bliže Suncu i kada solarni paneli dobiju dovoljno energije. Opis ovih eksperimenata možete naći na stranici wikipedije posvećene Philae landeru: http://en.wikipedia.org/wiki/Philae_(spacecraft).

Unfortunately some of planed experiments couldn't be done such as APXS, ÇIVA, MUPUS, ROMAP i SESAME because all of those depend on the continuous operation of the lander with steady power supply. But that does not mean that those experiments will not be done in some future time as there is a big chance that lander will wake up when the comet comes close to the Sun and solar panels receive enough power. The description of all this experiments zou can find on Wikipedia page deditacted to Philae: http://en.wikipedia.org/wiki/Philae_(spacecraft).

Sve u svemu, ova frenetična 3 dana su bili možda najuspiješnija 3 dana u istoriji evropskih svemirskih istraživanja, dobivena je gomila podataka koji će biti predmet proučavanja dolazećih godina. 

I ne zaboravimo najvažnije, spustili smo se na jebenu kometu!!!

All in all, those 3 frantic days were maybe the most successful days in history of European space program, we receives a flood of new data which will be researched for many years to come.

And do not forget peeps we actually landed on a freaking comet!!!
Pogledajte posljednje dramatične trenutke iz kontrolne sobe onako kako su predstavljeni na Twitteru dok naučnici posmatraju posljednje wate energije koji nestaju iz landera:

Check the last dramatic moments from the OPS as shown through Twitter feed as scientists observe last watts of energy seeping away from lander batteries.

https://twitter.com/Philae2014
https://twitter.com/ESA_Rosetta
http://www.esa.int/Our_Activities/Space_Science/Rosetta/Pioneering_Philae_completes_main_mission_before_hibernation

Friday, November 14, 2014

Treći dan na kometi / 3rd day on a comet


Prije nekoliko minuta preko Twitter-a je službeno najavljena nova press konferencija o rozeta misiji. Konferencija će se održati 14 Novembra (danas) u 13:00 GMT. Postoji i Google+ event kojemu se možete pridružiti na idućem linku:


https://plus.google.com/events/c78o050l93ub7cm4kcoltjnt424

Before few minutes was officially announced via Twitter a new media briefing about Rosetta Mission. The press conference will be held on 14th November (today) at 13:00 GMT. Also associated with this press conference a Google+ event exist so you can join if you want. The link follows:

https://plus.google.com/events/c78o050l93ub7cm4kcoltjnt424

Ja ću kao i obično pratiti cijeli događaj kao i ostale izvore informacija i ažurirati ovaj post prema potrebi.

I will as usual follow this event and update this blog post with all relevant and new information I find around using all news sources I have access to.

Samo da dodam evo zanimljive slike koja prikazuje mjesto sletanja onako kako ga vidi sonda Rozeta

Just to add, here is an interesting photo which shows the landing site as seen from Rosetta probe



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Update 1


Uprvavo je velika novost izašla na Twetter preko naloga: https://twitter.com/Philae2014. Druga velika novost je da sam upravo naučio da mogu embed tweet i da ne moram uzimati screenshot. Svi mi učimo po nešto iz svega ovoga :D.

Just this moment big news have come out from Tweet account: https://twitter.com/Philae2014. The other news is that i just learned how to embed tweets in blog directly. All of us will learn a lot from this events :D

Ali da ne duljim, evo ga Tweet:
But I digress, here is the Tweet:
Što ovo znači? Ovo znači da Philae nije u previše problematičnom položaju čim može izvršiti bušenje površine. kako su to izveli vjerovatno će objasniti na konferenciji za štampu. Ja lično jedva prije čekam.

What does this mean? Well it seems that Philae is not in to much precarious position as they can drill the surface of the comet. How they did it at the moment it is unknown but surely it will be explained during media briefing. I surely can`t wait.


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Update 2

Kometa koja pjeva / Singing comet




O čemu se radi?

Oko komete postoji slabo magnetsko polje koje se sudara sa sunčevim vjetrom što izaziva vibraciju ioniziranih atoma u razrijeđenoj komi komete (kometska atmosfera). Ovo stvara vibrirajući zvuk koji se može detektovati dovoljno osjetljivim instrumentima. Međutim ovaj zvik je preslab i veoma niske frekfencije tako da je za potrebe ovog klipa ubrzan i pojačan oko 10000 puta. Astronomi su bili poprilično iznenađeni ovim otkrićem jer se smatralo da je magnetsko polje kometa preslabo da izazove ovaj efekat. Sada treba otkriti odakle potiče ovakvo mjerljivo magnetno polje jer se smatralo da ga komete ne mogu imati.

Detale možete naći u ovom članku: http://blogs.esa.int/rosetta/2014/11/11/the-singing-comet/

What is all about?

Around this comet a very weak magnetic field exist which interacts with solar wind causing ionized gas from comets coma (comets atmosphere) to vibrate. This forms a sort of vibrating sound which can be detected with sufficiently sensitive equipment. This sound is to week to be normally heard so to make this audible clip the vibration was accelerated and intensified to come in to human audible range for about 10000 times. it was a pretty big discovery as scientist thought that comets have to weak magnetic field to produce this kind of effect. Now they must figure out a good explanation to explain how a small comet like this can generate such measurable magnetic field.

Details you can find in this article: http://blogs.esa.int/rosetta/2014/11/11/the-singing-comet/


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Update 3 

Hangout link: https://www.youtube.com/watch?v=7Xm6y0LzlLo#t=42



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Update 4, last for today

Iz svega što je rečeno danas iz raznig izvora i uključujući gore linkovani hangout, može se zaključiti da je radni vijek landera pri kraju zbog potrošenih baterija. Na žalost pozicija na kojoj se lander našao ne dozvoljava solarnim panelima da prikupe dovoljno svjetlosti da proizvedu dovoljnu količinu energije za rad. Večeras će biti moguće posljednji kontakt sa landerom ako ga u opće bude. S druge strane postoji mogućnost da se lander probudi sam od sebe kada kometa priđe Suncu i nastavi sa radom kako se zračenje sa sunca bude povećavalo i kometa bude postajala sve aktivnija. Trenutno lander buši i uzima uzorke iz tla i svi se nadaju da će imati dovoljno energije da obavi posao i pošalje rezultate nazad na Zemlju, večeras, prije nego li baterije konačno izdahnu.

From all news found today, including the above hangout, we can assume that lander is about to run out of power soon, maybe even tonight. unfortunately the lander solar panels are not receiving enough radiation to produce enough power to power the small craft. Tonight will probably be the last contact with lander before batteries run out of power assuming that lander has enough power to do even that. There is hope that the lander will reactivate at later time as comet approaches the Sun and solar panels receive more light from it. At the moment lander is taking soil samples and everybody hopes that it will have enough power to analyse it and send data home.

S druge strane ako se uspije uspostaviti kontakt večeras, naučnici planiraju poslati komande landeru da obavi neke funkcije u pokušaju da se izvuče iz "rupe" u koju se uvalio i izloži solarne panele Suncu i tako produži svoj radni vijek. Ali to će biti riskantan potez jer lander na kometi teži jedva 1 gram pošto je gravitacija komete veoma slaba (oko 100 000 puta slabija nego na Zemlji) tako da takav manevar može imati nepredvidljive posljedice.

On the other hand, if mission control manages to make contact with lander tonight, they are planing to send a set of commands to try to make the craft dig it self out from the "dark hole" and expose it`s solar panels to the Sun. In any case this will be a risky maneuver because the weight of the lander is just about 1 gr (0.035 ounce) as gravity pull of the comet is minuscule (100 000 times lower than Earths) and this can cause unpredictable effects.

Međutim uzbudljivi period ove misije tek predstoji. Naime kometa se približava Suncu i pravo istraživanje tek predstoji, kako se komet bude budio pod uticajem zračenja i formirao gustu komu dok gasovi iz jezgre budu izbijali na površinu. Najbliži prolaz Suncu kometa 67P/Churyumov–Gerasimenko će imati u Avgustu 1915 godine tako da će najveći dio istraživanja ove komete biti urađen upravo u tom periodu. Ako sve prođe kako treba biti ćemo svjedoci stvaranja gejzira na površini kometa kako voda i zamrznuti ugljendioksid budu sublimirali stvarajući komu (kometsku atmosferu). Mnogi veliki izazovi tek predstoje kako se goleme količine gasa i prašine budu oslobađale sa površine. Ovo će biti tek pravi ispit za našu tehnologiju, da li će sonda izdržati i uspijeti se održati u tom divljem okruženju uzavrele komete?

Fotografija Halejeve komete sa sonde Giotto
Photo of the Halley comet nucleus by probe Giotto
But after all the most important period of this mission is not the landing of Philae (although it was historic event and milestone in space technology) but the comets approach closer to the Sun. The real science will start only then as comet wakes up from cold slumber and starts boiling off the water and carbon dioxide forming a vast coma around nucleus. 67P/Churyumov–Gerasimenko will be closest to the Sun only in August 2015 and we can expect big changes on the surfaces and a lot of science coming from Rosetta, giant geysers outgassing from surface and a lot of activity, as gas and dust envelop the Rosetta probe. Some real challenges to our technology are still ahead. Will the probe be strong enough to survive the wild environment of a boiling comet?




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Thursday, November 13, 2014

Philae na kometi, nastavak avanture / Philae on the comet, the adventure continues

Prije nekoliko minuta objavljeno je nekoliko zanimljivih tweet-ova na Twetter nalozima vezanim za Rosetta misiju. Objavljena je fotografija uslikana na mjestu sletanja Philae landera te neki podaci oko sletanja landera. Između ostaloga izgleda da je lander odskočio nekoliko puta po sljetanju. Međutim i pored pomenutih problema lander izgleda za sada funkcioniše dobro o čemu ova fotografija svjedoči. Za sada još nema informacija kako će nestabilnost landera prouzročena kvarom uređaja za sidrenje (harpuna) uticati na funkciju sonde. Nadam se da ćemo imati više informacija tokom dana.

Before few minutes on Twitter accounts associated with Rosetta missions we got some new information about the fate of the lander Philae. It looks like the lander is functioning well as the first picture from landing site suggests. On the other hand it looks like that lander had preformed at least three bounces across the surface due to the failure of anchoring devices (harpoons). At present there are no information how this anchoring failure will affect the mission. i hope we will have some more information during the day.

Fotofrafija sa mjesta sletanja
Photo from landing site
Trenutno se novosti mogu pratiti preko Twittera na iduća dva Twitter naloga:
At the moment you can follow Twitter feed on this two accounts associated with Rosetta Mission:


Ja ću i dalje pratiti protok informacija i ažurirati ovaj blog post kako nove vjesti budu dolazile.
I will continue to monitor news feed and update this blog post as new information are available.

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Update 1

Prema podacima sa bloga Rosetta Operations, kontakt sa landerom je uspostavlje oko 06:01 UTC, u početku nestabilan ali kasnije dovoljno dobar da lander počne sa slanjem podataka. Kontakt je ponovo izgubljen oko 09:58 UTC što je predviđeno jer je sonda ponovo zašla iza horizonta. Prema informacijama sonda će biti u kontaktu sa landerom dva puta dnevno po nekoliko sati kako bude obilazila oko komete.

As per info from official Rosetta Operations blog the contact with lander was made at 06:01 UTC this morning, unstable at first but later good enough to transmit data from lander. The contact was lost again at 09:58 as Rosetta probe went below the comet horizon. The contact with lander will occure twice per day as Rosetta probe orbits the comet.

Informacije o ovome možete naći na ovom linku: http://blogs.esa.int/rosetta/2014/11/13/rosetta-operations-update/
The blog entry with this information you can find on this link: http://blogs.esa.int/rosetta/2014/11/13/rosetta-operations-update/

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Update 2

Današnji media briefing, direkni link: link: http://new.livestream.com/ESA/cometlanding/videos/67965864
Media briefing from today, direct link: http://new.livestream.com/ESA/cometlanding/videos/67965864




Daklen izgleda da lander stoji nagnut na površini i u sjenci i da ne dobija dovoljno energije što će uticati na ispitivanja koja će lander moći obavljati. S druge strane ESA planira pokušati ispraviti lander tako da se mogu obaviti sva moguća ispitivanja. Lander je 2 puta odskočio od površine i sada se nalazi nekoliko stotina metara od planiranog mjesta sletanja (crvena kockoca), vjerovatno na obroncima obližnjeg kratera (plavi romboid).

What is known until now is that lander is tilted and in shadow and it is not receiving enough energy from the Sun. This condition will affect how much science ESA will be able to preform on surface. But on the other hand ESA is planning to try to erect the lander properly during following hours to place it in better position. As it is, lander bounced 2 times off surface landing several hundred meters off planed landing site (red square) into shallow nearby crater (blue diamond shaped mark).











Ova posljednja slika ocrtava panoramu oko landera i vjerovatan položaj samog landera. primjetiti će te da jedna fotografija, gornja pokazuje samo nebo.
The next picture shows panoramic image and position of the lander within it. You can notice that upper photo shows just sky.


U svakom slučaju možemo očekivati neke novosti tokom idućih sati. Za detalje pogledajte medija briefing video iznad.

In any case we can expect more information in the following hours. For details you can check the above briefing video.

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Update 3, last for today

Najavljena je nova konferencija za štampu, sjutra oko 13:00 GMT. i dalje ću pratiti situaciju i adekvatno ažurirati blog.

A new press conference was announced for tomorrow around 13:00 GMT. I will continue to follow the events and will update my blog accordingly.

U međuvremenu evo jedne zanimljive mape na kojoj se mogu pronaći imena svih država i kompanija koje učestvuju u misiji ili su učestvovale u izradi Rosetta sonde.

In the meantime here is an interesting map showing all countries and companies whom are or were involved with the mission.



Thanks for reading this blog and cya tomorrow.

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Wednesday, November 12, 2014

Philae se spustio / Philae has landed

Philae se spustio na kometu, prve fotografije se mogu očekivati za oko sat vremena.
Pratite događaje onako kako se odvijaju direktno na: http://new.livestream.com/esa/cometlanding

Philae has landed on the comet, first photos should arrive to Earth in about a hour.
Please follow the events as they follow at: http://new.livestream.com/esa/cometlanding



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Update 1 (Twitter): 

Izgleda da harpuni nisu opalili. Philae je na kometi ali nije propisno usidren i postoji opasnost da tokom rada odskoči. Naučnici iz kontrole na zemlji će pokušati opaliti harpune ručno.

It looks like harpoons on board did not fire. Philae is on the comet but not anchored to it and danger exist for it to bounce off during work. The team on Earth will try to fire the harpoons manually.

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Update 2:

Slika sa landera dok se spuštao na
kometu sa 3 km visine

Photo of the comet from lander during the descent 
from 3 km altitude (about 10000 feet)
Prve fotografije sa landera stižu na Zemlju:

First photos from lander are arriving to Earth:





















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Update 3:

Još jedna slika sa landera, ovaj put sa Facebook stranice: https://www.facebook.com/RosettaMission

Another photo from the lander, from the Facebook page of the mission: https://www.facebook.com/RosettaMission








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Update 4:


Prema najnovijim informacijama Philae je stvarno odskočio sa komete (jer harpuni nisu opalili) ali se ponovo spustio na nju i dobiveni podaci govore da se smirio na površini. Trenutno je izgubljena radio veza sa landerom ali to je bilo za očekivati pošto je sonda Rosetta zašla za horizont komete i Philae više nije vidljiv njenim instrumentima. Sada treba čekati da se sonda vrati u pogodnu poziciju da se uspostavi kontakt. To bi se trebali dogoditi negdje sjutra ujutro.


As per latest news it was confirmed that harpoons didn't fire and it looks like that lander has in fact bounced of the comet and landed back second time safely and now it is in rest on surface. At the moment the radio link with lander is lost but that was expected as Rosetta probe went under the comets horizon and the lander is not visible any more from the probe. Now we need to wait until probe comes back in to view from the lander to reconnect the radio link, probably until morning.

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Update 5, final one:


Webcast je završio a novi postovi sa novostima se mogu očekivati tek sjutra. Zato ću prekunuti ažurirati ovaj članak i otpočeti novi sjutra. Nadam se da će biti dobrih vijesti. U međuvremenu našao sam ovu veoma zanimljivu sliku koja stavlja kometu u perspektivu sa poznatim vidicima. Ovdje se uspoređuje sa Manhatnom.


Webcast is over and we can not expect any news from the comet until tomorrow. Because of this I will end updating this article and start new one tomorrow if new important information come from ESA. in the meantime i found this interesting picture which putts the comet core in to perspective with known landscape. In this case with Manhattan. 



Prve fotografije spuštanja Philae na kometu / First photos of Philae landing on comet

Ovo je prva fotografija odvojenog landera sa sonde.
This is first photo of detached lander from the Rosetta probe:



Provjerite ostale fotografije kako budu stizale sa sonde na Facebook stranici ESA-e Rosetta Mission:
Check the rest of photos as they arrive from the probe at Facebook ESA Rosetta Mission page:


https://www.facebook.com/RosettaMission






Philae se upravo spušta / Philae is landing


Phila se upravo spušta i webcast upravo traje, imali su nekoliko pokušaja sinoć koji su bili neuspješni, međutim prije nekoliko sati lander se uspiješno odvojio i spušta se bez problema. Telemetrija u redu i može se očekivati touch down za nekoliko sati.


Promijenili su webcast webstranicu a link evo ovdje:


Philae is landing right now and webcast is in progress. As I understand they had few unsuccessful tries to separate lander from the probe during last night, but finally they managed to do it and Philae is under way and expected to land in few hours pulled down by comets weak gravity. All is going well.

The webcast is on new webpage and here it is:

 http://new.livestream.com/esa/cometlanding

Saturday, October 18, 2014

Kometa Siding Spring, direktan prenos / Comet Siding Spring, direct coverage of the event

Ovo će biti kratki članak o sjutrašnjem događaju u okolini Marsa, bliskom prolasku komete Siding Spring pokraj ove planete o čemu sam prije pisao. Oči cijelog svijeta a ponajviše naučnika su uprte u pravcu Marsa i svi drže fige da svemirske sonde obave svoj zadatak i prežive ovaj susret.

Da ne duljim, namjeravam postaviti nekoliko linkova koji će pratiti ovaj događaj direktno, zajedno sa komentarima stručnjaka.

Prvo, direktno praćenje preko Youtube LIVE:

This article will be short, about tomorrows close approach of Siding Spring to Mars, about which I did write on this blog previously

Here they are, all links (I could find) which will cover this event as it unfolds:


https://www.youtube.com/watch?v=voBNsmkE7Ig

https://www.youtube.com/watch?v=PuY9cVO3wbU

http://www.space.com/19195-night-sky-planets-asteroids-webcasts.html

http://live.slooh.com/

http://www.slooh.com/Slooh-to-Broadcast-Live-Feed-of-Comet-Siding-Spring-Flyby-of-Mars-with-Double-Feature

http://mars.nasa.gov/comets/sidingspring/

http://www.livestream.com/eurospaceagency

http://www.planetary.org/blogs/emily-lakdawalla/2014/10171350-watching-siding-springs.html



Na kraju puno sreće i vjetar u leđa našim robotskim izaslanicima oko planete Mars.
Samo da pomenem sve nacije koje su poslale svoje svemirske sonde tamo:

SAD sa NASA
Evropa sa ESA
Indija sa ISRO

Godspeed to all our robot emissaries around Mars
Just to remind you of all nations who have space probes there

US with NASA
Europe with ESA
India with ISRO



Monday, October 13, 2014

Ebola izvan Afrike / Ebola outside Afrika

Ono čega se WHO najviše bojao se upravo događa. Naime ebola je izašla iz Afrike i krenula u svijet. Na svu sreću svi slučajevi su na vrijeme locirani i stavljeni pod karantin i data im je lječnička pomoć. 

The worst WHO fears have come to pass. Ebola have stepped out of Africa via uncontrolled means. Fortunately all cases were located and isolated and under medical care. All people who came in contact with them have been quarantined.

Potvrđeni slučajevi / Confirmed cases

USA

Do sada su zabilježena dva slučaja Ebole, obadva u Dallasu, Teksas. Prvi slučaj je na žalost završio fatalno i radilo se o putniku iz Zapadne Afrike koji nije pokazivao znake bolesti tokom putovanja već se razbolio nekoliko dana po dolasku u USA. Sve osobe koje su došle u kontakt sa njim su stavljene pod karantin. Na žalost bolesnik je preminuo nekoliko dana poslje. Drugi slučaj je medicinski radnik koji je radio oko ovog bolesnika. Međutim važno je napomenuti da je on preliminarno testiran i taj test je bio pozitivan, kako napominju zvaničnici iz CDC, potrebno je ponoviti testove da bi se sa sigurnošću znalo. Osoba je takođe stavljena u karantin.

Up to now two cases of Ebola have been found in US. First case is a man whom traveled from West Africa to US for family visit. He wasn't sick during the travel but developed the illness after he arrived in US. Unfortunately he died few days later. All people who came in to contact with him have been quarantined. Second case is still unclear. A health worker working on this patient have been tested positive to virus. Still, this is a preliminary result and more testing is needed, in the mean time the person is under quarantine and observation.

Takođe u SAD zabilježeno je i nekoliko lažnih uzbuna. S druge strane SAD je postrožio svoje mjere na graničnim prelazima, pogotovu na aerodromima prema putnicima koji dolaze iz Afrike. Ispitivanja i mjerenje temperature su sada obavezni za te putnike.

http://www.bostonglobe.com/metro/2014/10/12/ebola/z3DybKoXBg0XjPO6m5yVgK/story.html

Also worth to note is that there were few false alarms around US which have been dismissed later. Also the US authorities have stepped up the border control especially on airports targeting mostly travelers from Africa. The temperature measurements and questioning are now part of the routine checking of those passengers.

http://www.bostonglobe.com/metro/2014/10/12/ebola/z3DybKoXBg0XjPO6m5yVgK/story.html

Španija / Spain

Medicinska sestra, koja je pomagala misionaru koji je obolio u Africi i prebačen u Španiju na liječenje i koji je na žalost preminuo, je takođe postala zaražena, prema njenim riječima svojom pogreškom tokom manipulacije zaraženom opremom. Njeno stanje se prema riječima tamošnjih dužnosnika popravlja. Takođe sve osobe koje su došle u kontakt sa njom su stavljene u karantin i prismotru. Jedina žrtva za sada u vezi sa ovom medicinskom sestrom je njen pas kojeg su vlasti eutanizirale na protest okolnih društava za zaštitu životinja. S druge strane eutanaziranje je možda bilo preuranjeno, vlasti su možda trebale zadržati ovog psa kao vrijedan izvor informacija o tome kako se Ebola ponaša kod drugih životinja pogotovu kućnih ljubimaca (psi i mačke), s obzirom da o tome vrlo malo znamo.
A nurse fell ill in Spain after she contracted the disease during her work caring for a missionary whom contracted Ebola in Africa during his work helping people there. The missionary unfortunately died in Spain after he was transferred from Africa for medical care. The nurse contracted the disease because she made an error during manipulation with infected equipment. All persons who came in contact with here were put under observation and quarantine. As Spanish official announced the nurses health is improving at the moment. Her dog on the other hand was euthanized by authorities under protest from many animal rights organisations (PETA and such). On the other hand this euthanization might be a mistake as we know very little about how this disease is spread among other animals, especially pets. This dog could have brought some knowledge about this.

http://news.yahoo.com/first-outside-africa-nurse-spain-hospital-contracts-ebola-174043185.html

Potvrđeni slučajevi koji su kontrolirano prebačeni iz Afrike u svoje matične zemlje zbog liječenja / Confirmed cases of Ebola outside Africa whom have been transported in their countries for medical attention under controlled environment. 

Nju Jork Times iznosi podatak da za sada takvih kontroliranih slučajeva ima 13 od kojih je dvoje umrlo, 6 ih je još pod medicinskom brigom a 6 ih se oporavilo. U ovo nisu uračunati gore pomenuti slučajevi.

http://www.nytimes.com/interactive/2014/07/31/world/africa/ebola-virus-outbreak-qa.html?_r=0

New York Times gives this set of data for controlled cases of Ebola: total of 13 cases of transported infected, mostly medical workers from Africa, two of which died, 6 are still in treatment and 6 have recovered. In this numbers above, wild cases were not included.

http://www.nytimes.com/interactive/2014/07/31/world/africa/ebola-virus-outbreak-qa.html?_r=0

Lažne uzbune i pojačane mjere opreza / False alarms and increased control measures

Posljednjih dana je bilo dosta lažnih uzbuna po ovom pitanju pa ću samo pomenuti nama najbliže i one najveće u svjetu.

Makedonia: Jedna osoba, engleski državljanjin je naglo oboljela u svojoj hotelskoj sobi, prebačen je u bolnicu gdje je preminuo od unutarnjeg krvarenja. Kasniji nalazi su potvrdili da osoba nije bolovala od ebole niti od drugih vrsta hemoralgičnih groznca.

http://www.independent.co.uk/news/uk/home-news/ebola-briton-who-died-in-macedonia-did-not-have-deadly-virus-officials-say-9789075.html

Crna Gora: Dvije osobe, putnici iz Nigerije su zadržane na areodromu Podgorica u trajanju oko 1 sat (zbog ispitivanja ali na žalost sa malo uspijeha jer ispitivači nisu znali Engleski) i kasnije pušteni uz obavezne kontrole svaki dan dok su se nalazili u Crnoj Gori.
Hrvatska i Srbija: U obije države su pojačane mjere kontrole putnika koji dolaze iz zaraženih zona. U Hrvatskoj se trenutno nalazi 18 osoba pod medicinskom prismotrom koje su došle iz Nigerije i Liberije. U Srbiji se nalazi trenutno oko 720 ljudi pod sličnom prismotrom.

http://www.balkaninsight.com/en/article/croatia-monitors-africa-returnees-for-ebola
http://inserbia.info/today/2014/10/no-ebola-in-serbia-health-care-system-ready/

Albanija: Postoje neke vrlo nepotvrđene informacije da su u Albaniji zaustavili emigrante od kojih su neki pokazivali simptome bolesti. Međutim ove informacije su čini se samo izmišljotina. Sve ovo se navodno desilo još negdje u Avgustu.

Last days were full of false alarms in many places, because there are a lot of them i will just cover the closest ones to my country.

Macedonia: An Englishman died in a hospital after he fell ill in his hotel room. The death was caused from massive internal bleeding which made medical personal there suspect the Ebola virus. Fortunately later was confirmed that it was not a case.
Montenegro: Two persons traveling from Nigeria were stopped in Podgorica airport and placed in quarantine zone for one hour for questioning (which proved difficult as none of interrogators knew English). Later the travelers were set free under condition to report every day to the medical authorities during their stay in Montenegro.
Croatia and Serbia: Both countries have tighten their control over borders toward travelers from Africa. In Croatia 18 persons are under medical surveillance and in Serbia more than 720 all of which were travelers from Africa.

http://www.balkaninsight.com/en/article/croatia-monitors-africa-returnees-for-ebola
http://inserbia.info/today/2014/10/no-ebola-in-serbia-health-care-system-ready/

Albania: A rumor surfaced that Albanian police have stopped 40 immigrants from Africa some of which showed symptoms of Ebola. Those rumors were almost certainly not true. Anyways this alleged event had taken place in August.

Nije za uzgred ponoviti! kako se prenosi Ebola. / Lets go over it again! How Ebola is transmitted.



Ebola se prenosi direktnim kontaktom sa inficiranim tjelesnim tečnostima (krv, mokraća, slina, plazma, mljeko, sperma, izmet, gnjoj) preko sluznica ili kroz otvorene povrede. Bolest ne može proći kroz kožu i mora doći u dodir sa sluznicama (kroz usta ili seksualnim kontaktom) ili ranicama. Takođe prenosi se i preko zaraženih predmeta poput nesteriliziranih medicinskih pomagala, ćebadi, odjeće i sličnog, opet samo kroz sluznice ili otvorene ranice. Postoji sumlja i da se može prenjeti preko aerosola sline kroz kihanje i kašljanje ali takvi slučajevi nikada nisu dokumentirani i najvjerovatnije su malo su vjerovatni.

Ebola is transmitted through direct contact with infected bodily fluids (blood, sperm, plasma, milk, urine, feces, pus, saliva) through mucous and open wounds. The virus can not pas through healthy skin and must came in contact with open wound and mucous (through mouth or during sexual contact). Also it can be transmitted through infected items such unclean medical equipment, blankets or clothing. There is a concern that it can be transmitted through aerosol of infected saliva but it was never observed and it is a very low chance if even possible.

Inkubacija traje do 22 dana ali se može javiti i poslje samo nekoliko dana od zaraze.

Incubation lasts up to 22 days but the onset could happen only few days after infection.

Bolesnik je zarazan tek kada se bolest pojavi simptomima, dok je bolest u inkubaciji bolesnik nije zarazan, barem ne u normalnim uslovima življenja i kontakata. Leš umrle osobe od ove bolesti je jako zarazan i veoma opasan za manipuliranje. Osoba koja je preležala bolest nije zarazna u normalnim uslovima življenja i kontakata, međutim virus se može zadržati u spermi muškarca više mjeseci tako da se preporučuje seksualna apstinencija u trajanju od bar 90 dana uz obavezne kontrole da bi se odredila preostala količina virusa do potpunog nestanka istog.

The patient is contagious only during symptoms phase, during the illness onset and duration. During the incubation patient is not contagious during normal circumstances of life and contacts. The corpse of a person whom died from this illness is highly contagious and very dangerous and should be handled with utmost care and preferably by expert professionals. The person whom survived the illness and does not present any symptoms any more is not contagious under normal circumstances of life. But it was found that the virus can be present in sperm of male survivors for months. It is advised to restrain from sexual contacts for at least 90 days after the infection end, and to control the level of virus via medical exams until person is declared virus free.

Osoba koja je preležala Ebolu je imuna iako se ne zna koliko ta imunost traje. Do sada nisu zabilježeni slučajevi da je preležala osoba bila ponovo zaražena.

Person whom survived the outbreak is immune but it is unknown for how long. Up untill now there were no reported cases of person getting reinfected with the disease.

Prevencija / Prevention

Održavati ličnu higijenu na visokom nivou, obavezno pranje ruku i cijelog tijela ukoliko se dođe u kontakt sa oboljelom osobom, svaki put kad do toga dođe. Pregledati svoje tijelo dali postoje otvorene ranice ili oštećenja i propisno ih dezinficirati i zaštititi hanzaplastom ili nekim drugim nepropusnim materijalom. Održavati čistoću u kući i na radnom mjestu upotrebom dezinficirajućih sredstava poput tečnosti za pranje prozora, varikinom i slično. Ovo je pogotovu važno ukoliko se došlo u kontakt sa zaraženom osobom i tada je dezinfekcija obavezna. 

Maintaining personal hygiene all the time, washing hands and whole body especially if you come in contact with infected person. Check your body for any open wounds or damage and disinfect those places on skin and cover them with bandaid or some other waterproof aid. Maintain cleanliness in the household and in work place using disinfectant liquids and detergents.   

Ukoliko se radi oko osobe koja je zaražena (pomaganje ili asistencija u lječenju bolesnika), a nema se propisna hazmat oprema, propisno zaštititi usta i disajne puteve maskom, oči nekim zaštitnim plastičnim radnim naočarima, upotrebljavati gumene rukavice i obući dugi vodonepropusni mantil čiji su otvori zatvoreni nekim nepropusnim selotejpom, Odjeću i posteljinu za koju se sumlja da je zaražena treba spaliti, naravno oprezno da se ne bi izazvao požar.

In case you need to take care of unfortunate victim of infection and you don't have appropriate hazmat suit, use any means to protect your mouth and nose (using makeshift mask soaked in disinfectant), protect hands with rubber gloves, protect eyes with protective eye-gear and ware a long raincoat fastened with belt and sealed off with adhesive tape. All clothing and bedding suspected to be infected just burn in controlled manner to avoid uncontrolled fire.

Vakcine i lijek / Vaccines and cure

Trenutno ne postoji lijek protiv ove bolesti, međutim postoji nekoliko modela liječenja koji daju rezultate koji obećavaju i koji obuhvataju neke novo razvijene antiviralne ljekove i simptomatsku medicinu.

At the moment there is no cure for this illness. Some promising treatments exist involving newly developed antiviral drugs and via symptomatic medicine, but all of those are highly experimental.

Vakcina se ubrzano razvija i već su počeli testovi na ljudima u pogođenim djelovima svijeta. Međutim očekuje se masovna primjena iste tek za oko 6 mjeseci kada testiranje na ljudima donese rezultate i ukoliko se pokaže efikasnom.

Vaccine is under fast development and already is been tested in the field in affected areas of the World. In any case the vaccine should be available for mass production in about 6 months if those tests in field come back positive.

Linkovi / Links

http://www.cdc.gov/vhf/ebola/

http://www.who.int/csr/disease/ebola/en/

http://www.theverge.com/2014/10/11/6962039/ebola-vaccine-is-now-being-tested-in-west-africa

http://www.cbsnews.com/news/ebola-vaccine-being-tested-in-rapid-fashion-say-researchers/

http://www.english.rfi.fr/africa/20141011-suspected-french-ebola-case-tests-negative-minister

http://news.yahoo.com/first-outside-africa-nurse-spain-hospital-contracts-ebola-174043185.html