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Phoenix Final Descent Trajectory
vikingmars
post May 28 2008, 05:27 PM
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smile.gif With a little image processing, one can easily see the final descent trajectory of the Phoenix Lander with its plumes disturbing the top layer of the Martian surface. After the release of the lander from the backshell, the effect is barely seen first, but is becoming more obvious, until the final strong pulses before landing. Any better estimates ? Enjoy ! rolleyes.gif
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- vikingmars   Phoenix Final Descent Trajectory   May 28 2008, 05:27 PM
- - bgarlick   Is it possible that what you are seeing is wind di...   May 28 2008, 05:38 PM
- - fredk   I'm not convinced - there are comparable dark ...   May 28 2008, 05:49 PM
- - bcory   Also one must consider at what swing angle the dec...   May 28 2008, 05:55 PM
- - kenny   Phoenix was of course programmed to thrust away fr...   May 28 2008, 06:02 PM
|- - MahFL   Yes Phoenix was programmed to fly away. Mind you I...   May 28 2008, 06:05 PM
|- - ugordan   Indeed. I was also surprised how close to the heat...   May 28 2008, 06:19 PM
|- - MahFL   Then again the atmosphere is very very thin and al...   May 28 2008, 06:25 PM
|- - Adonis   QUOTE (ugordan @ May 28 2008, 08:19 PM) I...   May 29 2008, 06:58 PM
- - vikingmars   OK, good points. Maybe I'm wrong then : let...   May 28 2008, 06:17 PM
- - kwan3217   Actually this is about what I expect. The powered ...   May 28 2008, 06:30 PM
|- - dmuller   QUOTE (kwan3217 @ May 29 2008, 04:30 AM) ...   May 29 2008, 03:18 AM
|- - AndyG   engenglish??? ...Eng2lish? Andy   May 29 2008, 09:09 AM
|- - Greg Hullender   QUOTE (dmuller @ May 28 2008, 08:18 PM) A...   May 29 2008, 04:16 PM
|- - dmuller   QUOTE (Greg Hullender @ May 30 2008, 02:1...   May 29 2008, 08:46 PM
- - mhall   Engl-ish ?   May 29 2008, 11:57 AM
- - dmuller   Building on VikingMars' work, assumed wind (st...   May 30 2008, 09:06 AM
|- - ugordan   Dmuller, doesn't that north vector contradict ...   May 30 2008, 10:34 AM
|- - dmuller   QUOTE (ugordan @ May 30 2008, 08:34 PM) D...   May 30 2008, 11:16 AM
|- - dilo   Agree, Daniel. I reached same conclusions looking ...   May 30 2008, 09:12 PM
- - djellison   The vehicle intentionally rotated during terminal ...   May 30 2008, 10:39 AM
|- - ugordan   Quite. If anything, I'd say north is about 12 ...   May 30 2008, 10:46 AM
- - Adonis   Is anywhere information about the final landing ch...   May 31 2008, 04:05 PM
|- - MahFL   The project manager said it would take several mon...   May 31 2008, 04:19 PM
- - ahecht   There is an updated version of the EDL movie that ...   Jun 13 2008, 05:00 PM
- - cndwrld   MEX Failed To Image The Descent I'm not sure ...   Jul 9 2008, 12:46 PM
|- - 1101001   The MRO team has given the Phoenix-on-parachute pi...   Jul 9 2008, 10:05 PM
- - Pertinax   Kudos again to the MRO team and a Mars bar to T-Ma...   Jul 9 2008, 10:58 PM
- - jmknapp   With the imaging by HIRISE, is there a definitive ...   Jul 9 2008, 11:18 PM
|- - Pertinax   QUOTE (jmknapp @ Jul 9 2008, 07:18 PM) Wi...   Jul 9 2008, 11:59 PM
|- - Juramike   QUOTE (Pertinax @ Jul 9 2008, 07:59 PM) A...   Jul 10 2008, 03:44 AM
|- - jmknapp   QUOTE (Juramike @ Jul 9 2008, 11:44 PM) I...   Jul 10 2008, 10:13 AM
|- - Pertinax   QUOTE (Juramike @ Jul 9 2008, 11:44 PM) I...   Jul 10 2008, 06:09 PM
- - akuo   The position was already reported in an earlier po...   Jul 10 2008, 10:26 AM
|- - jmknapp   QUOTE (akuo @ Jul 10 2008, 06:26 AM) The ...   Jul 10 2008, 11:00 AM
- - edstrick   At approximately 0 km elevation, the average press...   Jul 10 2008, 10:59 AM
- - akuo   Works for me. I guess this is another way to put i...   Jul 10 2008, 11:08 AM
|- - jmknapp   Hmmm... still don't see it. Anyway, the locati...   Jul 10 2008, 01:33 PM
- - kwan3217   I just did my hourly check of the spice kernels at...   Jul 30 2008, 04:02 PM
|- - dmuller   QUOTE (kwan3217 @ Jul 31 2008, 02:02 AM) ...   Jul 31 2008, 12:02 AM
||- - jmknapp   QUOTE (dmuller @ Jul 30 2008, 08:02 PM) p...   Jul 31 2008, 01:24 AM
|- - gallen_53   QUOTE (kwan3217 @ Jul 30 2008, 04:02 PM) ...   Jul 31 2008, 02:15 AM
|- - gallen_53   Hold on, I just found the NAIF website at http://n...   Jul 31 2008, 02:22 AM
|- - kwan3217   I use the NAIF spice toolkit and IDL, but the one ...   Jul 31 2008, 04:07 AM
|- - gallen_53   Thank you. I'll try it in the morning. Do yo...   Jul 31 2008, 06:35 AM
|- - kwan3217   QUOTE (gallen_53 @ Jul 31 2008, 12:35 AM)...   Jul 31 2008, 04:26 PM
- - djellison   If someone can convert these into CSV's or som...   Jul 31 2008, 07:51 AM
|- - jmknapp   QUOTE (djellison @ Jul 31 2008, 02:51 AM)...   Jul 31 2008, 11:07 AM
|- - gallen_53   QUOTE (jmknapp @ Jul 31 2008, 12:07 PM) H...   Jul 31 2008, 05:43 PM
- - djellison   Awesome - I'll have fun with that. Is this al...   Jul 31 2008, 11:58 AM
|- - jmknapp   QUOTE (djellison @ Jul 31 2008, 07:58 AM)...   Jul 31 2008, 03:01 PM
- - Juramike   Thank you. That graph is so cool... I think I ju...   Jul 31 2008, 04:56 PM
- - djellison   Oh wow - that IS good stuff.... For excel-monkeys...   Jul 31 2008, 05:14 PM
|- - jmknapp   QUOTE (djellison @ Jul 31 2008, 12:14 PM)...   Jul 31 2008, 05:48 PM
|- - djellison   QUOTE (jmknapp @ Jul 31 2008, 06:48 PM) 9...   Jul 31 2008, 05:49 PM
- - kwan3217   Is there a good way to get the actual orientation ...   Jul 31 2008, 05:26 PM
- - elakdawalla   Goody goody goody....keep the awesome graphs comin...   Jul 31 2008, 06:17 PM
- - kwan3217   On the CSVs with velocity, make sure you specify t...   Jul 31 2008, 06:27 PM
|- - fredk   QUOTE (kwan3217 @ Jul 31 2008, 06:27 PM) ...   Jul 31 2008, 07:25 PM
- - Juramike   From the parachute deployment, the tether seems to...   Jul 31 2008, 06:42 PM
- - CosmicRocker   I'm a bit out of my element in this thread, bu...   Aug 1 2008, 05:48 AM
|- - jmknapp   QUOTE (CosmicRocker @ Aug 1 2008, 12:48 A...   Aug 1 2008, 12:17 PM
|- - mcaplinger   QUOTE (jmknapp @ Aug 1 2008, 04:17 AM) Fo...   Aug 1 2008, 02:12 PM
|- - jmknapp   QUOTE (mcaplinger @ Aug 1 2008, 09:12 AM)...   Aug 1 2008, 05:05 PM
|- - mcaplinger   QUOTE (jmknapp @ Aug 1 2008, 09:05 AM) Ju...   Aug 1 2008, 09:02 PM
- - djellison   The joys of 'plot' - a freeware app for OS...   Aug 1 2008, 09:36 AM
- - Ant103   I have made a KMZ file to see what it look in 3D b...   Aug 1 2008, 09:46 AM
|- - jmknapp   QUOTE (Ant103 @ Aug 1 2008, 04:46 AM) I h...   Aug 1 2008, 12:40 PM
- - djellison   What about cheating - just add 2.5k to every alt v...   Aug 1 2008, 09:50 AM
- - Ant103   Yes, but how? There are a huge quantity of numbers...   Aug 1 2008, 10:01 AM
- - djellison   Last 55s or so of landing. Altitude on black line...   Aug 1 2008, 12:18 PM
- - djellison   FWIW , Excel '08 on my Mac can open the CSV In...   Aug 1 2008, 01:41 PM
- - nprev   I was kind of curious about that altitude data. Is...   Aug 1 2008, 01:50 PM
|- - jmknapp   QUOTE (nprev @ Aug 1 2008, 08:50 AM) I wa...   Aug 1 2008, 04:50 PM
- - Ant103   jmknapp : thanks. Your updated file is great, but,...   Aug 1 2008, 03:01 PM
|- - jmknapp   QUOTE (Ant103 @ Aug 1 2008, 10:01 AM) jmk...   Aug 1 2008, 04:35 PM
- - dmuller   Again without having looked at the files, I recall...   Aug 1 2008, 05:08 PM
- - djellison   A few close-ups of the accel during deployments et...   Aug 3 2008, 07:47 PM
|- - jmknapp   QUOTE (djellison @ Aug 3 2008, 02:47 PM) ...   Aug 3 2008, 08:39 PM
||- - djellison   QUOTE (jmknapp @ Aug 3 2008, 09:39 PM) We...   Aug 3 2008, 09:31 PM
|- - dmuller   QUOTE (djellison @ Aug 4 2008, 05:47 AM) ...   Aug 4 2008, 04:24 AM
||- - climber   QUOTE (dmuller @ Aug 4 2008, 06:24 AM) I ...   Aug 4 2008, 12:33 PM
||- - ilbasso   QUOTE (climber @ Aug 4 2008, 08:33 AM) No...   Aug 4 2008, 12:44 PM
||- - djellison   Yeah - the heatshield would have been quite a lot ...   Aug 4 2008, 01:27 PM
|- - Oersted   QUOTE (djellison @ Aug 3 2008, 09:47 PM) ...   Aug 4 2008, 09:03 AM
|- - Skyrunner   QUOTE (Oersted @ Aug 4 2008, 11:03 AM) Wo...   Aug 4 2008, 10:15 AM
- - Ant103   QUOTE (jmknapp @ Aug 1 2008, 06:35 PM) OK...   Aug 4 2008, 10:24 AM
- - djellison   Now that would be interesting. Ditto the exact mom...   Aug 4 2008, 10:54 AM
- - dmuller   If anybody is creating a very detailed timeline of...   Aug 4 2008, 11:14 AM
- - jmknapp   Well, the three legs didn't touch down at the ...   Aug 4 2008, 01:33 PM
- - kwan3217   More CSV goodness, this time rotation matrices As...   Aug 4 2008, 02:49 PM
- - kwan3217   This one is in IAU Mars, which rotates with the su...   Aug 4 2008, 02:53 PM
|- - jmknapp   QUOTE (kwan3217 @ Aug 4 2008, 09:53 AM) 2...   Aug 4 2008, 04:53 PM
|- - jamescanvin   QUOTE (jmknapp @ Aug 4 2008, 05:53 PM) An...   Aug 4 2008, 05:09 PM
- - Ant103   It's hard to find it and deduce it by seeing g...   Aug 4 2008, 03:34 PM
|- - kwan3217   QUOTE (Ant103 @ Aug 4 2008, 08:34 AM) It...   Aug 4 2008, 03:50 PM
- - dmuller   I agree with earlier suggestions that the heatshie...   Aug 4 2008, 03:35 PM
- - Ant103   Yes, I've seen it. But, the timeline is show a...   Aug 4 2008, 04:01 PM
- - jamescanvin   Ant, in this post the x-axis is given in time past...   Aug 4 2008, 04:16 PM
- - kwan3217   QUOTE (jamescanvin @ Aug 4 2008, 09:16 AM...   Aug 4 2008, 05:00 PM
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