My Assistant
Site Message
Unmanned Spaceflight.com > All posts by a member| Posted on: Aug 12 2008, 04:13 PM | |
|
Founder  Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 
|
Well - my maths is probably off, but I get 1.86 km above the centre of mass of Enceladus - so basically an altitude of minus 248km ish |
| Forum: Cassini's ongoing mission and raw images · Post Preview: #123375 · Replies: 18 · Views: 19195 |
| Posted on: Aug 12 2008, 03:37 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (ugordan @ Aug 12 2008, 04:14 PM)  18 kilometers/second velocity, That would take all of Cassini's fuel tanks...and probably the Titan rocket that launched it  |
| Forum: Cassini's ongoing mission and raw images · Post Preview: #123370 · Replies: 18 · Views: 19195 |
| Posted on: Aug 12 2008, 03:24 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
FYI - the actual pluto debate itself has been had at UMSF before. It ended with raised tempers, arguments, attacks, people running to teacher to claim they were getting bullied. See the several threads in this sub-forum for further examples. We're not going down that road again. Whos job it is to decide, however, is a pertinent and interesting debate. Keep it nice. |
| Forum: Pluto / KBO · Post Preview: #123367 · Replies: 196 · Views: 99526 |
| Posted on: Aug 11 2008, 10:20 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
I was worried this would turn into another 'define-a-body' argument, because we've really had enough of that here. But wow - we've got a new one, define-a-debate. Debating who can debate it is a nice new twist...I like it. Doug |
| Forum: Pluto / KBO · Post Preview: #123305 · Replies: 196 · Views: 99526 |
| Posted on: Aug 11 2008, 07:14 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
A few of us here probably know just how hard that must have been to pull together, to much kudos to the CCC for managing it |
| Forum: Opportunity · Post Preview: #123286 · Replies: 254 · Views: 1569927 |
| Posted on: Aug 11 2008, 03:38 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
It helps that Iceland IS Mars Seriously - that last one is erie! Doug |
| Forum: Mars · Post Preview: #123270 · Replies: 4 · Views: 6782 |
| Posted on: Aug 11 2008, 11:45 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Photoshop CS3 for me. |
| Forum: Cassini's ongoing mission and raw images · Post Preview: #123259 · Replies: 23 · Views: 24642 |
| Posted on: Aug 11 2008, 09:13 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
I think they will be mainly rock-munching, and that makes for a much more managable medium in many respects. Doug |
| Forum: Phoenix · Post Preview: #123255 · Replies: 279 · Views: 225738 |
| Posted on: Aug 11 2008, 09:11 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
|
| Forum: Voyager and Pioneer · Post Preview: #123254 · Replies: 44 · Views: 127057 |
| Posted on: Aug 10 2008, 06:15 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
See - thats our emotions projected upon a robot - that makes sense. One might feel sadness FOR Opportunity at leaving Victoria crater (I feel the opposite), but the vehicle itself does not That's the differentiation of lexicon that makes it make sense.Doug |
| Forum: Opportunity · Post Preview: #123214 · Replies: 284 · Views: 188968 |
| Posted on: Aug 10 2008, 06:13 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Nobody can change what these planets 'are'. But they can try and come up with a better way of categorizing them - the current system is utterly broken (and that's coming from someone who doesn't care if Pluto is a planet or not,I just want a definition that makes sense) Doug |
| Forum: Pluto / KBO · Post Preview: #123213 · Replies: 196 · Views: 99526 |
| Posted on: Aug 10 2008, 04:32 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
What do you use to unstick the pry-bar when it gets stuck? Just saying |
| Forum: Phoenix · Post Preview: #123207 · Replies: 279 · Views: 225738 |
| Posted on: Aug 10 2008, 09:47 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (BrianL @ Aug 10 2008, 05:52 AM) That's a pretty easy call, given that TEGA seems neither particularly well thought out or implemented. And that is an utterly lousy call given that we have successfully delivered two sample, and have plenty of opportunities left to deliver more. |
| Forum: Phoenix · Post Preview: #123192 · Replies: 279 · Views: 225738 |
| Posted on: Aug 10 2008, 09:43 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (Stu @ Aug 10 2008, 08:07 AM) I get an overwhelming impression of sadness from Oppy It's a robot. Much as I love them, you really can take the personification stuff too far. A robot that's been spending months essentially stuck on sandy slopes, getting a broken arm, symptoms of a broken wheel, unable to really get to the beef of the science in there. Time to get out an do some sprinting? Bring it on. Doug |
| Forum: Opportunity · Post Preview: #123191 · Replies: 284 · Views: 188968 |
| Posted on: Aug 10 2008, 12:31 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (ZenDraken @ Aug 9 2008, 10:56 PM) Always KISS (Keep It Simple Stupid) or you're just adding problems. That's exactly how I would describe your entire suggestion. Which parts of the instrument payload would you sacrifice for your additions, MECA, TEGA or LIDAR. Your call. Doug |
| Forum: Phoenix · Post Preview: #123173 · Replies: 279 · Views: 225738 |
| Posted on: Aug 9 2008, 06:55 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (Hungry4info @ Aug 9 2008, 07:31 PM) Is it's position under the lander going to make acquiring it difficult/impossible? Yes. |
| Forum: Phoenix · Post Preview: #123154 · Replies: 169 · Views: 160565 |
| Posted on: Aug 8 2008, 11:04 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Langley was responsible, at least partially, for the Spirit movie of 'chute descent and RAD/TIRS firing -the file name is something of a clue. http://marsrovers.jpl.nasa.gov/gallery/vid...S_Animation.avi The AMA in another filename suggests Analytical Mechanics Associates. http://www.ama-inc.com/ps/engineering/engineering.shtml Doug |
| Forum: Phoenix · Post Preview: #123124 · Replies: 166 · Views: 167076 |
| Posted on: Aug 8 2008, 08:58 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Unmanned Semantics Forum it seems.  |
| Forum: Private Missions · Post Preview: #123116 · Replies: 511 · Views: 310795 |
| Posted on: Aug 8 2008, 01:14 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
One thing of note - for cinematic reasons probably - Dan Maas never had the right Delta II Sequence in the MER anim or IMAX sequence. He seems to put Fairing sep just before SECO...when it's just after MECO. Doug |
| Forum: Private Missions · Post Preview: #123081 · Replies: 511 · Views: 310795 |
| Posted on: Aug 8 2008, 12:33 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (nprev @ Aug 8 2008, 01:08 PM) wouldn't it be a bit odd to have staging, second-stage ignition, and fairing sep all happen within a few seconds of each other? It's the norm, afaik. 5-10 seconds between each. |
| Forum: Private Missions · Post Preview: #123078 · Replies: 511 · Views: 310795 |
| Posted on: Aug 8 2008, 08:55 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
It's just a 4 x 4 - sorry Stu - if they meant to write Ice - they'd have done a better job of it. Doug |
| Forum: Phoenix · Post Preview: #123072 · Replies: 169 · Views: 160565 |
| Posted on: Aug 8 2008, 07:31 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Fairing sep is moments later, so any dynamic pressure would be low I'd have thought. THis is all about residual thrust. Stronger sep springs would help as well I'd have thought. |
| Forum: Private Missions · Post Preview: #123065 · Replies: 511 · Views: 310795 |
| Posted on: Aug 8 2008, 07:24 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
This was a thread for speculation - not arguments. Steve and Reed - if you want to start a fight - do it somewhere else. Several of your posts ( and a few others ) have been culled. This is a thread, as Dan says, for MECA and perchlorate, not semantics. Doug |
| Forum: Phoenix · Post Preview: #123063 · Replies: 377 · Views: 2738468 |
| Posted on: Aug 7 2008, 09:07 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Wow - not subtle is it! |
| Forum: Private Missions · Post Preview: #123014 · Replies: 511 · Views: 310795 |
| Posted on: Aug 7 2008, 09:03 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (Deimos @ Aug 7 2008, 08:58 PM) We have a chemical that we may or may not have identified, that may or may not result from contamination, that may or may not have been confirmed when another instrument was used to analyze the soil, that may or may not be shot down in days when another measurement is made, and that may or may not have some bearing on the goals of this mission to understand habitability. Thank you Mark, you've managed to say what I've been trying to get across. |
| Forum: Phoenix · Post Preview: #123012 · Replies: 377 · Views: 2738468 |
 New Replies No New Replies Hot Topic (New) Hot Topic (No New) |
 Poll (New) Poll (No New) Locked Topic Moved Topic |
|
Lo-Fi Version | Time is now: 17th December 2024 - 07:08 AM |
|
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |
|
