LAMO, aka Low Altitude Mapping Orbit |
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LAMO, aka Low Altitude Mapping Orbit |
 May 10 2012, 06:31 PM
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#91
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 Senior Member  Group: Admin Posts: 4495 Joined: 15-March 05 From: Sloughhouse, CA Member No.: 197  |
Can we go now? I want to see Ceres.
-------------------- If Occam had heard my theory, things would be very different now.
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May 10 2012, 06:44 PM
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#92
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Member Group: Members Posts: 360 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
So, I guess I'll go ahead and hang on to my little diogenite samples. A bit more confidence in their source.
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May 10 2012, 06:51 PM
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#93
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 Member Group: Members Posts: 158 Joined: 6-March 07 From: texas Member No.: 1828 |
QUOTE (ElkGroveDan @ May 10 2012, 12:31 PM)  Can we go now? I want to see Ceres. No need to worry! staying longer at Vesta wont change our arrival time at Ceres. p -------------------- Dr. Paul Schenk, Lunar and Planetary Institute, Houston TX
http://stereomoons.blogspot.com; http://www.youtube.com/galsat400; http://www.lpi.usra.edu/science/schenk/ |
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May 10 2012, 06:56 PM
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#94
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 Senior Member Group: Members Posts: 2248 Joined: 15-January 05 From: center Italy Member No.: 150 |
Interesting conference, though I see less than a dozen people in the room (some of them appear annoyed too!)...
-------------------- - Marco -
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May 10 2012, 07:26 PM
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#95
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Member Group: Members Posts: 158 Joined: 6-March 07 From: texas Member No.: 1828 |
QUOTE (dilo @ May 10 2012, 12:56 PM) Interesting conference, though I see less than a dozen people in the room (some of them appear annoyed too!)... a lot of reporters like to do this sort of thing remotely now. or simply call beofre or after. kinda weird talking to a half empty room sometimes . . . -------------------- Dr. Paul Schenk, Lunar and Planetary Institute, Houston TX
http://stereomoons.blogspot.com; http://www.youtube.com/galsat400; http://www.lpi.usra.edu/science/schenk/ |
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May 11 2012, 07:05 AM
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#96
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 Senior Member Group: Members Posts: 1146 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
QUOTE (ElkGroveDan @ May 10 2012, 08:31 PM) Can we go now? I want to see Ceres. a quick remark on the conference: I noticed that the speakers pronounced Ceres as something like "series". the correct pronunciation should be something like "Che-reh-ss". it's Latin, it's not American-English! -------------------- I'm one of the most durable and fervent advocates of space exploration, but my take is that we could do it robotically at far less cost and far greater quantity and quality of results.
James Van Allen |
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May 11 2012, 12:44 PM
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#97
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 Senior Member Group: Members Posts: 1967 Joined: 28-December 04 Member No.: 132 |
It is interesting to know the correct Latin pronunciation but I don't think that makes the American-English pronunciation incorrect.
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May 11 2012, 01:35 PM
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#98
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Member Group: Members Posts: 301 Joined: 21-September 07 From: Québec, Canada Member No.: 3908 |
FWIW, in French, we write "Cérès" and pronounce it "say-ress" (short "say" and stress on "ress").
Edit: In classical Latin, the letter "C" was pronounced "K", but I don't think anybody would want to pronounce "kay-ress". |
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May 11 2012, 03:40 PM
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#99
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 Bloggette par Excellence Group: Admin Posts: 3959 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
QUOTE (dilo @ May 10 2012, 11:56 AM) Interesting conference, though I see less than a dozen people in the room (some of them appear annoyed too!)... I've noticed that conferences held at HQ are particularly poorly attended physically, though there are clearly quite a lot of people on the phone. I prefer following briefings on the phone because that way I can study the released images as I listen to the scientists talk about them. I think it's kind of a waste of both money and of busy people's time to fly all those people to HQ for briefings when they could conduct them perfectly well remotely. Though this time I wasn't on the phone at all, as I was playing in the desert with rovers instead 
-------------------- |
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Jul 24 2012, 01:25 AM
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#100
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Senior Member Group: Members Posts: 4508 Joined: 5-April 05 From: Canada Member No.: 227 |
Dawn isn't in LAMO now, it's moved back upstairs, but there are still lots of great pics from lower down on the website. Today's image shows a crater with a shadow and detail in the shadow brought out by special processing. Here I have combined the two versions of their image.
Phil
-------------------- ... because the Solar System ain't gonna map itself.
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Jul 25 2012, 02:17 AM
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#101
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Member Group: Members Posts: 158 Joined: 6-March 07 From: texas Member No.: 1828 |
Phil is right,
we are now in HAMO2, looking at the north pole for the first time. we have also been looking at the shadowed areas since last! I hadnt realized we had not shown any of these yet! quite amusing that we can see into the shadows in this way. nice camera. i hope to show some more someday soon. paul -------------------- Dr. Paul Schenk, Lunar and Planetary Institute, Houston TX
http://stereomoons.blogspot.com; http://www.youtube.com/galsat400; http://www.lpi.usra.edu/science/schenk/ |
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Jul 26 2012, 05:57 AM
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#102
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Senior Member Group: Members Posts: 2248 Joined: 15-January 05 From: center Italy Member No.: 150 |
Well, to be precise we aren't in HAMO2 anymore because, starting from yesterday, Dawn ignited engines and started the depart phase from Vesta...!
-------------------- - Marco -
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Jul 26 2012, 03:41 PM
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#103
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Senior Member Group: Members Posts: 4508 Joined: 5-April 05 From: Canada Member No.: 227 |
I'm looking forward to seeing some whole-frame images during the departure, a different view than we had during the approach.
Phil -------------------- ... because the Solar System ain't gonna map itself.
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Jul 26 2012, 08:32 PM
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#104
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Senior Member Group: Members Posts: 2248 Joined: 15-January 05 From: center Italy Member No.: 150 |
Based on simulated viewer and yesterday's Marc report, engines were ON for more than 24 hours and, as showed in the following plots, Dawn orbit is rapidly changing:
Last apoapsis was 776.5 km above Vesta surface, about 63 km above HAMO2 in last days... Total energy is clearly increasing too, however departure phase will last more than a month. Meanwhile, starting from Phil idea, I made these compositions of last 3 posted images in the "revealing shadows" series:
(first one is in Oppia quadrangle and latter two inside Marcia quadrangle). Consider that, for shadowed region, besides the different hue I used negative image in order to have an illumination roughly coherent with illuminated part. -------------------- - Marco -
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Jul 29 2012, 03:46 PM
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#105
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Senior Member Group: Members Posts: 2248 Joined: 15-January 05 From: center Italy Member No.: 150 |
Further update on escape maneuver:
Dawn is rapidly receding from HAMO orbit thanks to uninterrupted engine thrust; based on simulator figures, during last orbit there was an increase of apoapsis/periapsis heights of 57.9/59.3 km (a rising rate greather than 80 km/day); total energy/mass increased by 2.1 kJ/Kg in 4 days. Added: same processing for the 5th image of "revealing shadows" series, in the Floronia quadrangle:
-------------------- - Marco -
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