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Unmanned Spaceflight.com > All posts by a member| Posted on: Nov 12 2014, 05:42 PM | |
 Forum Contributor  Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 
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Data from Rosetta is still coming down. |
| Forum: Rosetta · Post Preview: #214867 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 05:32 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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I can't believe the harpoons did not fire  |
| Forum: Rosetta · Post Preview: #214862 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 04:48 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (Gerald @ Nov 12 2014, 04:45 PM)  They're going to think about a second try to shoot the harpoons. Oh no.......  |
| Forum: Rosetta · Post Preview: #214848 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 04:17 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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Now I believe it, from the BBC : "Shortly after the touchdown was confirmed, Stephan Ulamec, the mission's lander chief, said: "Philae is talking to us... we are on the comet." |
| Forum: Rosetta · Post Preview: #214837 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 04:09 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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ESA blog went down for me and spaceflightnow . It's definitely landed ? |
| Forum: Rosetta · Post Preview: #214832 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 03:47 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (Norm Hartnett @ Nov 12 2014, 03:44 PM) Audio was just cut. Comments from the flight controller lead me to believe they lost all signals. Hopefully I'm dead wrong. According to the DSN page, Rosetta is not transmitting right now. |
| Forum: Rosetta · Post Preview: #214823 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 03:43 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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Both harpoons will be fired on touchdown. |
| Forum: Rosetta · Post Preview: #214820 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 03:28 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (akuo @ Nov 12 2014, 03:26 PM) Getting excited about the landing here. Philae, may your harpoons be true and truster working. The cold gas thruster is not working, the pin puncturing the gas bottle failed 4 times, so the gas thruster cannot be used. |
| Forum: Rosetta · Post Preview: #214815 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 02:35 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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Next pictures of the comet on the way down ? |
| Forum: Rosetta · Post Preview: #214807 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 01:31 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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| Forum: Rosetta · Post Preview: #214804 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 12 2014, 07:10 AM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (Gerald @ Nov 12 2014, 08:08 AM) "We've got the final go". Even my cats are nervous, woke me up...well off to bed again..... |
| Forum: Rosetta · Post Preview: #214782 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 11 2014, 10:37 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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Those boulders in 3D look like they are made of large snowballs. |
| Forum: Rosetta · Post Preview: #214775 · Replies: 614 · Views: 567469 |
| Posted on: Nov 11 2014, 08:59 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (brellis @ Nov 11 2014, 08:46 PM) Googling contingency plans, to no avail - is it possible for Philae to operate even if it doesn't successfully attach itself to the comet? If it touches down safely enough but floats off -- would it still be possible to perform some observations, even if only on battery power? If it's in full sun there will be overheating problems, the landing site was chosen to include some night time for cooling the lander. |
| Forum: Rosetta · Post Preview: #214768 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 8 2014, 11:10 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (fredk @ Nov 8 2014, 04:56 PM) ...so you may not have seen many meteors. They said you may have seen 1000's of meteors per hour, for about 90 minutes. 1000's.... |
| Forum: Telescopic Observations · Post Preview: #214687 · Replies: 134 · Views: 100606 |
| Posted on: Nov 6 2014, 02:50 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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| Forum: Telescopic Observations · Post Preview: #214589 · Replies: 11 · Views: 9788 |
| Posted on: Nov 4 2014, 02:47 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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| Forum: Rosetta · Post Preview: #214522 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 1 2014, 06:26 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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Rosetta has been successfully moved to to the correct orbit for the landing. Won't ever be as close to the comet again for the rest of the mission. Landing orbit |
| Forum: Rosetta · Post Preview: #214454 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 1 2014, 06:20 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (centsworth_II @ Nov 1 2014, 07:03 PM) Those "rocks" are probably not very dense. They may be more like big fluff balls, or maybe light but stiffer, like pumice. The lander is not that dense and has three long legs to spread the weight. |
| Forum: Rosetta · Post Preview: #214453 · Replies: 1412 · Views: 1230866 |
| Posted on: Nov 1 2014, 05:59 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (PhilHorzempa @ Nov 1 2014, 05:57 PM) ...In fact, I predict that the Philae lander will sink out of sight. In a paper by Schultz, et al, analyzing results of the Deep Impact mission, there is mention that the surface of Tempel 1 has a density of 0.2 - 0.5 g/cc, with a porosity of 90%! Then how are house sized rocks sitting on the surface ? |
| Forum: Rosetta · Post Preview: #214451 · Replies: 1412 · Views: 1230866 |
| Posted on: Oct 18 2014, 08:04 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (vikingmars @ Oct 18 2014, 05:59 PM) The last image from the Indian Mars Orbiter Mission ..... Do you mean the latest or the last one ? Did the mission end ? ADMIN NOTE: MahFl, I think that a quick look to either the mission website, Twitter feed, Facebook page, ISRO's website or any number of space news sites could have answered that question for you. MOM's mission continues as normal. At the very least check/Google before asking a quesion like that please. |
| Forum: ISRO Mars Orbiter Mission · Post Preview: #213975 · Replies: 65 · Views: 166089 |
| Posted on: Oct 17 2014, 11:15 AM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (climber @ Oct 16 2014, 04:25 PM) I'm wondering how far we'll see once on the ground... If we see something, it's going to be awesome. I would guess the horizon would be 300 meters away or so. The jets though should be something else. |
| Forum: Rosetta · Post Preview: #213917 · Replies: 1412 · Views: 1230866 |
| Posted on: Oct 15 2014, 01:44 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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It's not exactly flat is it ? Those cliffs have to be at least 20 feet high ? |
| Forum: Rosetta · Post Preview: #213822 · Replies: 1412 · Views: 1230866 |
| Posted on: Oct 9 2014, 05:22 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (Paolo @ Oct 9 2014, 02:07 PM) BOULDER CLOSE-UP To think...the lander could fit easily onto a smooth part of that boulder... |
| Forum: Rosetta · Post Preview: #213681 · Replies: 614 · Views: 567469 |
| Posted on: Oct 3 2014, 03:15 PM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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QUOTE (jgoldader @ Oct 3 2014, 02:01 PM) That's an awfully low density--0.4 g/cm^3. Must be a significant void fraction, I'd guess. Are there any really low density phases of water ice or more exotic ices? It's not a solid ball of ice, there are a host of other materials in there, including dust. In fact one slight worry is the lander could sink into meters of dust, which would pretty much be the end of the lander mission. |
| Forum: Rosetta · Post Preview: #213560 · Replies: 614 · Views: 567469 |
| Posted on: Oct 1 2014, 10:26 AM | |
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11
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Can someone explain why a lot of rear hazcam pics have come down ?, they all seem to be the same to me. Thanks. |
| Forum: MSL · Post Preview: #213515 · Replies: 546 · Views: 439254 |
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