LAMO, aka Low Altitude Mapping Orbit |
LAMO, aka Low Altitude Mapping Orbit |
 Nov 11 2011, 10:23 PM
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#1
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 Senior Member  Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150  |
I think is time to start this new topic, now that Dawn is more than half-way in the transition from HAMO to LAMO (as showed in the plot below).
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-------------------- I always think before posting! - Marco -
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Nov 17 2011, 04:15 PM
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#2
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Solar System Cartographer Group: Members Posts: 10258 Joined: 5-April 05 From: Canada Member No.: 227 |
The latest four images were posted on the same day... I check every day, believe me. We had a minibreak. But these are spectacular!
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 17 2011, 10:20 PM
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#3
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Updated situation, all plots:
Engines are now silent and average height is around 270 km... -------------------- I always think before posting! - Marco -
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Nov 18 2011, 05:20 PM
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#4
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Now that we have an improved simulator (better Vesta digital model and, especially, more frequent screen updates) I am frequently monitoring the simulated height of the probe; in the last 24 hours, engines were off but orbit isn't completely stable:
The interpolated sinusoidal curve correspond to a 5.1 hours average period between 235 and 285 km height. The reason of slight phase/amplitude variations sould be the irregular gravity field of Vesta. In fact, as explained in the last Mission Status, the purpose of these thrust stops is a natural or passive orbit adjustment (especially the orientation). Edit: slightly modified previous text and updated plot (no orbit decay) -------------------- I always think before posting! - Marco -
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Nov 23 2011, 08:41 PM
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#5
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
New update after two long simulator black-outs:
Based on today's status report, "The spacecraft thrusts occasionally with its ion propulsion system, but most of the time it coasts, letting Vesta's gravity reorient its orbit." Note also that last two published images were taken 15 days ago from an intermediate distance of 480km: http://dawn.jpl.nasa.gov/multimedia/imageo...p?date=20111123 http://dawn.jpl.nasa.gov/multimedia/imageo...p?date=20111122 -------------------- I always think before posting! - Marco -
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Nov 25 2011, 10:52 PM
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#6
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Further update:
Dawn is almost there! -------------------- I always think before posting! - Marco -
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dilo LAMO Nov 11 2011, 10:23 PM
ElkGroveDan Good thing we aren't calling it a "Low Ma... Nov 11 2011, 11:53 PM
dilo Another way to show the progress from HAMO to LAMO... Nov 14 2011, 04:08 PM dilo And finally, we are below 300km height... not far ... Nov 16 2011, 08:49 PM Phil Stooke Hopefully the daily image releases will resume sho... Nov 16 2011, 08:59 PM stevesliva QUOTE (Phil Stooke @ Nov 16 2011, 04:59 P... Nov 16 2011, 09:54 PM Tunglere Images from Nov. 10-13 don't currently show up... Nov 16 2011, 11:47 PM dilo Now short engine burns are frequent:
Nov 29 2011, 10:05 PM Phil Stooke "Dawn image EDR data will be publicly release... Nov 29 2011, 11:54 PM elakdawalla Time for us to lurk on the Small Bodies Node websi... Nov 30 2011, 02:34 AM Phil Stooke This link...
http://pds-smallbodies.astro.umd.edu... Nov 30 2011, 04:18 AM dilo QUOTE (Phil Stooke @ Nov 30 2011, 04:18 A... Dec 1 2011, 07:02 AM SFJCody QUOTE (dilo @ Dec 1 2011, 05:02 PM) ...an... Dec 1 2011, 07:06 AM angel1801 I did a Solar System Simulator run for Vesta and I... Dec 1 2011, 12:03 PM Greg Hullender I think shifting the Vesta departure date would re... Dec 1 2011, 03:21 PM algorimancer QUOTE (Greg Hullender @ Dec 1 2011, 09:21... Dec 1 2011, 03:49 PM Explorer1 Yeah, Dawn's launch was delayed three months, ... Dec 1 2011, 09:01 PM Greg Hullender QUOTE (Explorer1 @ Dec 1 2011, 01:01 PM) ... Dec 2 2011, 06:06 PM Greg Hullender QUOTE (Greg Hullender @ Dec 2 2011, 10:06... Jan 1 2012, 09:51 PM stevesliva http://dawn.jpl.nasa.gov/multimedia/vesta_dawn_gal... Dec 1 2011, 09:52 PM stevesliva New Dawn Journal:
QUOTE There is always a tug dow... Dec 2 2011, 12:47 AM PDP8E The Dawn Journal and Dr. Marc Rayman should get so... Dec 2 2011, 06:50 PM dilo I agree, PDP8E. Dec 3 2011, 06:10 AM dilo After last burns, nominal LAMO height (200km above... Dec 3 2011, 07:22 PM dilo No burns in last hours, orbits is now around 185x2... Dec 4 2011, 09:40 PM machi Interesting news via Emily's twitter:
"R... Dec 6 2011, 05:53 PM stevesliva Several updates here:
http://dawn.jpl.nasa.gov/mul... Dec 8 2011, 06:08 AM claurel Now that Robert Gaskell's shape model of Vesta... Dec 9 2011, 07:38 PM claurel QUOTE (claurel @ Dec 9 2011, 11:38 AM) No... Dec 13 2011, 11:32 PM Sarunia Thank you, I was just preparing a conversion for c... Dec 13 2011, 11:58 PM ElkGroveDan Beautiful. Thanks for sharing. Dec 9 2011, 07:51 PM Sarunia With the shape from Dr. Robert Gaskell (and provid... Dec 10 2011, 11:04 PM dilo Beautiful simulated views in this video, Sarunia... Dec 11 2011, 08:34 AM Sarunia Thanks, dilo.
For the bump projection, a tri-axia... Dec 11 2011, 07:20 PM Phil Stooke Nice! This can be turned into a shaded relief... Dec 11 2011, 02:55 AM Bill Harris And Nice! ^2, Phil. You can see a lot of his... Dec 11 2011, 07:23 AM scalbers Videos of numerous AGU talks on Vesta from this pa... Dec 11 2011, 04:47 PM dilo After long hiatus (related to safe mode event one ... Dec 11 2011, 05:45 PM stewjack QUOTE (scalbers @ Dec 11 2011, 12:47 PM) ... Dec 11 2011, 09:18 PM djellison Did my own conversion from the greyscale map into ... Dec 11 2011, 09:10 PM stevesliva First (?) image from near LAMO?
http://dawn.jpl.na... Dec 14 2011, 01:43 AM dilo QUOTE (stevesliva @ Dec 14 2011, 02:43 AM... Dec 14 2011, 06:17 AM stevesliva And now the image of the day is stalled again. Le... Dec 15 2011, 07:31 PM dilo QUOTE (stevesliva @ Dec 15 2011, 08:31 PM... Dec 15 2011, 07:56 PM stevesliva Doh. Thanks for pointing that out, it'll save... Dec 15 2011, 08:04 PM Jaheira Is it just me, or does that sharp, young crater in... Dec 20 2011, 12:55 AM Marz QUOTE (Jaheira @ Dec 19 2011, 06:55 PM) I... Dec 20 2011, 06:54 PM stevesliva Five LAMO images have appeared here:
http://dawn.j... Dec 21 2011, 06:05 PM volcanopele 14 more names have been approved for use on Vesta,... Dec 28 2011, 04:25 AM Holder of the Two Leashes Thanks Greg.
I'd be interested to know how fa... Jan 2 2012, 08:20 AM algorimancer Spacedaily has an article up today (http://www.spa... Jan 3 2012, 01:42 PM Greg Hullender New Dawn Journal: http://dawn.jpl.nasa.gov/mission... Jan 5 2012, 03:42 PM stevesliva What a tease to link to the image of the day after... Jan 5 2012, 09:02 PM Phil Stooke No... they are here instead:
http://dawn.jpl.nasa... Jan 5 2012, 09:51 PM stevesliva I know there are some kicking around. Just hopin... Jan 5 2012, 10:01 PM pablogm1024 QUOTE (stevesliva @ Jan 5 2012, 11:01 PM)... Jan 6 2012, 02:49 PM pablogm1024 QUOTE (pablogm1024 @ Jan 6 2012, 03:49 PM... Jan 9 2012, 02:54 PM stevesliva http://dawn.jpl.nasa.gov/multimedia/imageo...p?dat... Jan 16 2012, 08:08 PM Marz Today's image is a nice 3-D anaglyph of impact... Jan 24 2012, 09:39 PM stevesliva Three releases on the multimedia page that would s... Jan 26 2012, 06:28 PM Marz QUOTE (stevesliva @ Jan 26 2012, 12:28 PM... Feb 14 2012, 10:14 PM Phil Stooke Some pretty clear flows on Vesta in the latest ima... Feb 5 2012, 03:49 AM ngunn Good question. I hope you get an answer from someo... Feb 14 2012, 11:07 PM Greg Hullender I see that we've got four more months at Vesta... Feb 16 2012, 02:12 AM Phil Stooke The short time at Ceres in the primary mission is ... Feb 16 2012, 02:58 AM scalbers Here's the released map with feature names put... Feb 26 2012, 06:00 PM stevesliva Two interesting image releases on Aricia Tholus la... Feb 29 2012, 12:08 AM john_s My impression, especially from those new images, i... Feb 29 2012, 03:42 AM Gsnorgathon But doesn't "tholus" just mean hill,... Feb 29 2012, 11:20 PM john_s That might be technically true, but "tholus... Mar 1 2012, 12:37 AM Gsnorgathon Umm... how about Lucaria Tholus? OK, yeah. That... Mar 1 2012, 02:23 AM pablogm1024 QUOTE (Gsnorgathon @ Mar 1 2012, 03:23 AM... Mar 2 2012, 10:10 AM Phil Stooke "tholus" on other bodies has typically b... Mar 2 2012, 02:25 PM Astro0 40 extra days at Vesta!
http://www.jpl.nasa.g... Apr 19 2012, 05:05 AM Phil Stooke Yes, and they have now released over 200 pictures ... Apr 19 2012, 12:03 PM charborob In LAMO, Dawn seems to be taking only nadir-pointi... Apr 19 2012, 12:14 PM Phil Stooke LAMO is all about the composition-mapping instrume... Apr 19 2012, 05:03 PM pablogm1024 QUOTE (Phil Stooke @ Apr 19 2012, 05:03 P... Apr 21 2012, 03:16 PM Juramike A really nice "uber"-image release today... Apr 25 2012, 06:59 PM Hungry4info NASA to Hold News Conference on Asteroid Mission R... May 7 2012, 07:58 PM Mariner9 I suspect that the news conference is timed to coi... May 8 2012, 05:11 PM Holder of the Two Leashes News conference set to start in one hour twenty mi... May 10 2012, 04:42 PM Floyd About to start, 98+ viewers May 10 2012, 05:58 PM Explorer1 Starting now... May 10 2012, 06:00 PM Paolo meanwhile, papers have appeared in Science http://... May 10 2012, 06:05 PM dilo Interesting conference, though I see less than a d... May 10 2012, 06:56 PM DrShank QUOTE (dilo @ May 10 2012, 12:56 PM) Inte... May 10 2012, 07:26 PM elakdawalla QUOTE (dilo @ May 10 2012, 11:56 AM) Inte... May 11 2012, 03:40 PM ElkGroveDan Can we go now? I want to see Ceres. May 10 2012, 06:31 PM DrShank QUOTE (ElkGroveDan @ May 10 2012, 12:31 P... May 10 2012, 06:51 PM Paolo QUOTE (ElkGroveDan @ May 10 2012, 08:31 P... May 11 2012, 07:05 AM centsworth_II It is interesting to know the correct Latin pronun... May 11 2012, 12:44 PM Holder of the Two Leashes So, I guess I'll go ahead and hang on to my li... May 10 2012, 06:44 PM charborob FWIW, in French, we write "Cérès" and pr... May 11 2012, 01:35 PM Phil Stooke Dawn isn't in LAMO now, it's moved back up... Jul 24 2012, 01:25 AM |
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