IPB
X   Site Message
(Message will auto close in 2 seconds)

Welcome Guest ( Log In | Register )

462 Pages V  « < 81 82 83 84 85 > » 

djellison
Posted on: Apr 18 2010, 12:27 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


As a pilot friend of mine once told me, the average 747 flight taking off from London to New York has NEARLY enough fuel..... to get half way back wink.gif
  Forum: Chit Chat · Post Preview: #158729 · Replies: 310 · Views: 232147

djellison
Posted on: Apr 18 2010, 10:48 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


I wonder why they can't fly out from LHR at, say 8,000, get west of Ireland then accelerate up to M.81 and FL350 from there. I understand the need for safety first, but it does seem a little bit like they've thrown their hands up and said "Ok - Volcano - you win" rather than trying every possible route in and out in the mean time.

  Forum: Chit Chat · Post Preview: #158722 · Replies: 310 · Views: 232147

djellison
Posted on: Apr 16 2010, 08:06 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


If the sun were directly 'behind' the spacecraft, it could happen - can that happen, however, with that landing site?
  Forum: LRO & LCROSS · Post Preview: #158642 · Replies: 475 · Views: 747602

djellison
Posted on: Apr 15 2010, 02:39 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Unlike normal DVD's, this one was actually a glass disc that is more analogous to being a master from which normal DVD's get stamped than a typical DVD-R or off the shelf movie DVD. It's a fairly robust thing.
  Forum: Phoenix · Post Preview: #158587 · Replies: 142 · Views: 289302

djellison
Posted on: Apr 15 2010, 10:57 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Making anaglyphs from stereo pairs - it's almost impossible to claim vertical accuracy in terms of exaggeration. We've had this discussion before with HiRISE or maybe CTX images. We're looking at a geometry when your eyeballs would be several km apart, 50 km above the lunar surface, and you can't back out of that to a more 'human' perspective without generating a DEM, and then re-rendering that as an Anaglyph.
  Forum: LRO & LCROSS · Post Preview: #158570 · Replies: 475 · Views: 747602

djellison
Posted on: Apr 14 2010, 10:50 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Don't read too much into how and when images make it online - it is far far more likely that we're seing the downlink split across two of the batch processes that put the images online, rather than two downlinks.
  Forum: Opportunity · Post Preview: #158541 · Replies: 327 · Views: 216043

djellison
Posted on: Apr 13 2010, 10:39 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


It's not like this is the last flare expected to occur during SDO's lifetime. There will be dozens, hundreds, thousands over the next decade.
  Forum: Sun · Post Preview: #158504 · Replies: 216 · Views: 370792

djellison
Posted on: Apr 12 2010, 01:56 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Thomas and the MEX VMC team - the nomination I (and a few UMSFers in Europe) made for this Europlanet outreach award.
  Forum: Conferences and Broadcasts · Post Preview: #158435 · Replies: 34 · Views: 23848

djellison
Posted on: Apr 12 2010, 12:41 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Well - they didn't win - but they were given a special mention (I just heard via Email )
  Forum: Conferences and Broadcasts · Post Preview: #158433 · Replies: 34 · Views: 23848

djellison
Posted on: Apr 11 2010, 11:23 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


QUOTE (Bobby @ Apr 12 2010, 12:14 AM) *
Does anyone have an image of the area taken by Spirit where she is stuck now?


The post previous to yours - with added rover for scale and perspective - is EXACTLY that.
  Forum: Spirit · Post Preview: #158417 · Replies: 992 · Views: 639260

djellison
Posted on: Apr 11 2010, 04:14 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Pity. Anyway - it's two priests in a caravan, one trying to explain to the other that whilst the toy cow on the table, and the real cows outside might look the same size....it's because these cows are small, and those cows are far away. It's from Father Ted - legendary channel 4 comedy here in the UK.
  Forum: Chit Chat · Post Preview: #158400 · Replies: 549 · Views: 459727

djellison
Posted on: Apr 11 2010, 04:04 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


These cows are small....those ones are FAR away
http://www.youtube.com/watch?v=25N-4zrk390
  Forum: Chit Chat · Post Preview: #158396 · Replies: 549 · Views: 459727

djellison
Posted on: Apr 11 2010, 03:05 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


It's a see-how-we-go situation.

If the thing gets cleaned to 800Whr+ come spring, can you really imagine them sitting still and not trying to get out?
  Forum: Spirit · Post Preview: #158388 · Replies: 992 · Views: 639260

djellison
Posted on: Apr 11 2010, 11:56 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Clearly it was taken down for a reason - and that reason holds as true here as it does on Emily's blog.
  Forum: Cometary and Asteroid Missions · Post Preview: #158381 · Replies: 702 · Views: 694438

djellison
Posted on: Apr 11 2010, 12:28 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


QUOTE (Geert @ Apr 11 2010, 01:15 AM) *
Impossible to tell whether your candidate or the 'official' candidate is Luna 18,


I'd say it's a very very very very very very very very very very very good candidate.

If it's NOT Luna 18, then someone else landed a replica Luna spacecraft at some point.
  Forum: LRO & LCROSS · Post Preview: #158368 · Replies: 202 · Views: 439290

djellison
Posted on: Apr 11 2010, 12:03 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


I noticed it as well. It's more like an Earth-Jupiter ratio than an Earth-Sun ratio.
  Forum: Chit Chat · Post Preview: #158366 · Replies: 549 · Views: 459727

djellison
Posted on: Apr 10 2010, 06:54 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


I can almost convince myself that the crash landing has caused the ascent stage to fall over to the north.
  Forum: LRO & LCROSS · Post Preview: #158360 · Replies: 202 · Views: 439290

djellison
Posted on: Apr 9 2010, 04:01 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Oh my word - you've reproduced? Now that's a terrifying thought!

biggrin.gif

Congratulations!!!

(is it wrong that I saw the mass and size in the subject title and thought 'that's a damn small asteroid to have been detected!' )
  Forum: Chit Chat · Post Preview: #158320 · Replies: 24 · Views: 14651

djellison
Posted on: Apr 9 2010, 08:02 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


QUOTE (climber @ Apr 9 2010, 08:31 AM) *
backing off a bit and use a smoother turn.


Because a 'smoother' turn would involved ploughing straight thru the dunes. Remember, Opportunity has a stuck FR steering actuator - so turning in place is not idea.
  Forum: Opportunity · Post Preview: #158309 · Replies: 327 · Views: 216043

djellison
Posted on: Apr 8 2010, 11:45 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


QUOTE (Bobby @ Apr 8 2010, 09:53 AM) *
I might suggest HiRise take pictures of Endeavor Crater and the area Opportunity will drive to get there?


Did it not occur to you that they might already have imaged those areas?
  Forum: MRO 2005 · Post Preview: #158261 · Replies: 22 · Views: 64573

djellison
Posted on: Apr 7 2010, 06:21 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


http://messenger.jhuapl.edu/the_mission/mo...andtimeline.mov

From
http://messenger.jhuapl.edu/the_mission/ani.html
  Forum: Messenger · Post Preview: #158225 · Replies: 80 · Views: 232468

djellison
Posted on: Apr 7 2010, 06:20 PM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Looks like an MI image of a concrete cast block that might have been taken during an MER ORT. Very nice.
  Forum: LRO & LCROSS · Post Preview: #158224 · Replies: 99 · Views: 134225

djellison
Posted on: Apr 7 2010, 07:35 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


QUOTE (Explorer1 @ Apr 7 2010, 06:50 AM) *
That's the camera's first image, correct? Or were there some from before?


It's AN image taken AFTER shipping to JPL. There will of course have been many many test images taken previously to that.
  Forum: MSL · Post Preview: #158205 · Replies: 68 · Views: 79209

djellison
Posted on: Apr 7 2010, 07:35 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Double check for yourself here : http://pancam.astro.cornell.edu/merweb/mer_edr_counter.pl
  Forum: Tech, General and Imagery · Post Preview: #158204 · Replies: 945 · Views: 730015

djellison
Posted on: Apr 7 2010, 06:06 AM


Founder
****

Group: Chairman
Posts: 14457
Joined: 8-February 04
Member No.: 1


Why not back them up, try it yourself, and report back. The message MH has given regarding how much time he has to work on MMB couldn't be any stronger.
  Forum: Tech, General and Imagery · Post Preview: #158201 · Replies: 945 · Views: 730015

462 Pages V  « < 81 82 83 84 85 > » 

New Posts  New Replies
No New Posts  No New Replies
Hot topic  Hot Topic (New)
No new  Hot Topic (No New)
Poll  Poll (New)
No new votes  Poll (No New)
Closed  Locked Topic
Moved  Moved Topic
 

RSS Lo-Fi Version Time is now: 17th December 2024 - 06:31 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and 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.