Emily Lakdawalla

@elakdawalla

Senior Editor & Planetary Evangelist, The Planetary Society. Planetary scientist, writer, public speaker. Writing a book on Curiosity mission. Asteroid 274860.

Pasadena, CA
ಮೇ 2008 ಸಮಯದಲ್ಲಿ ಸೇರಿದ್ದಾರೆ

@elakdawalla ತಡೆಹಿಡಿಯಲಾಗಿದೆ

ನೀವು ಖಚಿತವಾಗಿಯೂ ಈ ಟ್ವೀಟ್‌ಗಳನ್ನು ನೋಡಲು ಬಯಸುವಿರಾ? ಟ್ವೀಟ್‌ಗಳನ್ನು ನೋಡುವುದು @elakdawalla ಅವರನ್ನು ತಡೆತೆರವುಗೊಳಿಸುವುದಿಲ್ಲ.

  1. Rosetta was in a 19-km circular orbit, and the final maneuver basically canceled out orbital motion, sent it on free fall toward comet.

  2. Can't be sure Rosetta won't bounce, but I suspect that collapse of the 32-meter-wide solar arrays will absorb quite a lot of impact energy

  3. Hey, that's not a journalist! (It's , Principal Investigator of Alice instrument on , & also PI of )

  4. In this unlikely (but possible) scenario, comet rotation will carry Rosetta star tracker off lock, reboot/death happens min to hours later.

  5. I have trouble imagining how a world as apparently solid as 67P can be 70% pore space. Its interior has twice as much space as substance.

  6. When Rosetta touches down, it will tilt. Star trackers will lose lock. It will go into safe mode & reboot. On reboot, it will kill systems.

  7. There is delicious food & drink for the media at ESA events, but more tables to rest your computers on & better wifi at NASA/JPL events :)

  8. The press room is packed here at ESOC but there's not much actually happening for the next couple hours. Ask me Rosetta questions!

  9. From now forward, if Rosetta goes into safe mode, the mission is over. Hopefully that won't happen until actual touchdown.

  10. Meanwhile, on Mars: Murray Buttes in the rear-view mirror for Curiosity. Picture taken 14 hours ago

  11. Looking good over 70m station DSS63, Madrid. S-Band top, X-Band bottom. uses 2 frequencies to perform radio science

  12. Many spacecraft cameras are pretty low-res by modern standards, but OSIRIS has a 2048-pixel-square detector; enlarge or zoom to appreciate!

  13. Wooooow, look at the textures in this one

  14. Since this is a FAQ: Rosetta's OSIRIS NAC is in focus down to 1000m, the WAC down to 300m, by which time motion blur also an issue.

  15. Sylvain Lodiot, Operations Manager, reports "Point of no return on board" - the next safe mode (upon ) is final

  16. The amazing thing is that this isn't even particularly close-range as Rosetta images go...it's going to get much better in the next few hrs

  17. Qapla' Rosetta!

ಲೋಡಿಂಗ್ ಸಮಯ ಸ್ವಲ್ಪ ತೆಗೆದುಕೊಳ್ಳುತ್ತಿರುವಂತೆನಿಸುತ್ತದೆ.

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