IPB

Welcome Guest ( Log In | Register )

5 Pages V  < 1 2 3 4 5 >  
Reply to this topicStart new topic
Beagle 2 found by MRO/HIRISE.
PDP8E
post Jan 16 2015, 11:17 PM
Post #31


Member
***

Group: Members
Posts: 589
Joined: 10-October 06
From: Maynard Mass USA
Member No.: 1241



does anyone have the Mars long/lat of Beagle2?
I want to get HiView up and running tonight when I get home
Thanks


--------------------
CLA CLL
Go to the top of the page
 
+Quote Post
djellison
post Jan 16 2015, 11:17 PM
Post #32


Administrator
****

Group: Chairman
Posts: 13994
Joined: 8-February 04
Member No.: 1



That'll be the drogue chute flapping about - something like 1.5m across

Lat long - 90.4295E 11.5265N
Go to the top of the page
 
+Quote Post
J.J.
post Jan 17 2015, 01:02 AM
Post #33


Junior Member
**

Group: Members
Posts: 91
Joined: 22-March 06
Member No.: 722



Though definitely bittersweet, I consider this more of a triumph than a loss: of the MRO team for finding it, and most of all of Beagle 2 just making it to the surface. When you think of the dire alternatives, that it made it down in one piece is nothing less than remarkable. Thanks to everyone who was involved. smile.gif


--------------------
Mayor: Er, Master Betty, what is the Evil Council's plan?

Master Betty: Nyah. Haha. It is EVIL, it is so EVIL. It is a bad, bad plan, which will hurt many... people... who are good. I think it's great that it's so bad.

-Kung Pow: Enter the Fist
Go to the top of the page
 
+Quote Post
eoincampbell
post Jan 17 2015, 04:25 AM
Post #34


Member
***

Group: Members
Posts: 399
Joined: 28-August 07
From: San Francisco
Member No.: 3511



Absolute triumph to see, thanks Prof. Pillinger and the team who must feel so proud... smile.gif


--------------------
'She drove until the wheels fell off...'
Go to the top of the page
 
+Quote Post
ynyralmaen
post Jan 17 2015, 12:46 PM
Post #35


Member
***

Group: Members
Posts: 115
Joined: 18-July 05
Member No.: 438



QUOTE (xflare @ Jan 16 2015, 09:33 PM) *
There is also a white spot above the location of Beagle 2...any thoughts on what that might have been?


Althought it's most obvious in the latest image, there is a bright point at that same location in all three images; down to just 1-2 pixels though. Maybe it's one of the three airbags, and we're seeing a fold in the material?
Go to the top of the page
 
+Quote Post
Phil Stooke
post Jan 17 2015, 03:37 PM
Post #36


Martian Cartographer
****

Group: Members
Posts: 7132
Joined: 5-April 05
From: Canada
Member No.: 227



Doug: Beagle 2 location ---- Lat long - 90.4295E 11.5265N



try Long Lat - 90.4295E 11.5265N instead. You don't want to end up at 90.4 degrees north.

(well, he does add E and N... it's just the order I'm noting)

Phil


--------------------
... because the Solar System ain't gonna map itself.
Go to the top of the page
 
+Quote Post
tim53
post Jan 17 2015, 05:03 PM
Post #37


Member
***

Group: Senior Member
Posts: 136
Joined: 8-August 06
Member No.: 1022



QUOTE (mcaplinger @ Jan 16 2015, 12:43 PM) *
Is there any MOC coverage of this spot before the Beagle 2 landing? If it's close to the center of the ellipse I'd think there would be, and it would be useful to prove that the features are new.


I looked last month, and unfortunately there isn't another one.

-Tim.
Go to the top of the page
 
+Quote Post
tim53
post Jan 17 2015, 05:25 PM
Post #38


Member
***

Group: Senior Member
Posts: 136
Joined: 8-August 06
Member No.: 1022



QUOTE (elakdawalla @ Jan 16 2015, 01:42 PM) *
I was wondering about that, too. It's only really visible in the most recent image.

Also, my eye wants me to believe that there's something flapping around near the location of the backshell. I'm curious to hear others' opinions.


Doug and I were thinking that this might be the inside of the heat shield. It's even brighter in a new image just acquired by HiRISE, but it covers ~4 pixels (2x2), so it's about the right size.

-Tim.
Go to the top of the page
 
+Quote Post
Phil Stooke
post Jan 17 2015, 09:09 PM
Post #39


Martian Cartographer
****

Group: Members
Posts: 7132
Joined: 5-April 05
From: Canada
Member No.: 227



Looking at the details. The landing site is about 5 km from the middle of the post-landing tracking ellipse, but about 30 km from the middle of the pre-landing target ellipse. Some reports confuse the two. It was not 5 km off target.

Phil



--------------------
... because the Solar System ain't gonna map itself.
Go to the top of the page
 
+Quote Post
tim53
post Jan 18 2015, 02:53 AM
Post #40


Member
***

Group: Senior Member
Posts: 136
Joined: 8-August 06
Member No.: 1022



QUOTE (Phil Stooke @ Jan 17 2015, 01:09 PM) *
Looking at the details. The landing site is about 5 km from the middle of the post-landing tracking ellipse, but about 30 km from the middle of the pre-landing target ellipse. Some reports confuse the two. It was not 5 km off target.

Phil


I'm not sure I understand what you're saying. Since there was no communication with the orbiter after release, the nav ellipse must have been predicted at that time. I would think that the target ellipse was the plan before encountering Mars, maybe even before launch.

-Tim.
Go to the top of the page
 
+Quote Post
PDP8E
post Jan 18 2015, 02:58 AM
Post #41


Member
***

Group: Members
Posts: 589
Joined: 10-October 06
From: Maynard Mass USA
Member No.: 1241



Here is a 1st attempt at the color '39308' HiRise image, it is 3x. (The others are 30908 and 37145)
I have yet to collapse them all into one image, but that is a chore for another night.
The bright object to the north is most likely an airbag?
The three gas bags protecting Beagle were supposed to be 'ejected' away from Beagle after landing
Where are the other two? (covered in dirty dust and looking like surrounding ground? )
I am a little disappointed by the greenish tinges, but my program did the best it could (it's optimized for grayscales)
The 'parachute' is in this image at the southwest. The backshell may the one of the dark objects to the west or south of the 'parachute'? EDIT: the backshell was ejected with the dogue chute .. which remains to be imaged??
These objects are really small.
Congratulations to the Beagle Team for what looks like a good EDL and the MRO team for a great observatory in orbit around another planet (wow)
.... more later ...

Attached Image


--------------------
CLA CLL
Go to the top of the page
 
+Quote Post
PDP8E
post Jan 18 2015, 04:23 AM
Post #42


Member
***

Group: Members
Posts: 589
Joined: 10-October 06
From: Maynard Mass USA
Member No.: 1241



Beagle 2 came down on two parachutes the drogue that did the initial slowdown and ejected the backshell and then the main chute that brought it down to the ground and then was cut away on landing. So the main chute should be 'near' the lander, and the drogue further away. After looking at this image I would like to postulate the position of the 'main' chute and the bounding, rolling path of Beagle 2. (of course ... as my wife reminds me almost weekly... I could be wrong...) rolleyes.gif
Attached Image






--------------------
CLA CLL
Go to the top of the page
 
+Quote Post
brellis
post Jan 18 2015, 05:11 AM
Post #43


Member
***

Group: Members
Posts: 744
Joined: 9-February 07
Member No.: 1700



Communication was lost after Beagle separated, but it may have actually landed softly enough and deployed solar panels. Could that mean it took in some data? If it landed intact, and some day we got a robot or astronaut to recover the vessel, would it be possible to retrieve any such data from its hard drive or flash drive? Granted, the harsh conditions would degrade anything sitting around for years and years but it's interesting to consider...

In general once our robotic craft lose energy and conk out, could their hard drives or flash drives theoretically be retrieved like black boxes on earthly aircraft?
Go to the top of the page
 
+Quote Post
Phil Stooke
post Jan 18 2015, 04:10 PM
Post #44


Martian Cartographer
****

Group: Members
Posts: 7132
Joined: 5-April 05
From: Canada
Member No.: 227



"I'm not sure I understand what you're saying. Since there was no communication with the orbiter after release, the nav ellipse must have been predicted at that time. I would think that the target ellipse was the plan before encountering Mars, maybe even before launch.

-Tim."



You're right about both ellipses. The pre-landing target was the pre-launch target, as you say. But the final navigation solution leads to a much smaller ellipse when all the numbers are in (post-landing), giving you a smaller area to search with orbital cameras. The final version of the target ellipse was 174 by 106 km (Bridges et al. paper in 2003). The navigation solution was an ellipse 57 by 7.6 km across (Sims, 2004, Beagle 2 Mission Report).

The University of Leicester and the UK Space Agency both said this correctly. The BBC report is the one which says it was 5 km from the middle of the target ellipse - that's what I'm suggesting is misleading.

Phil


--------------------
... because the Solar System ain't gonna map itself.
Go to the top of the page
 
+Quote Post
mcgyver
post Jan 19 2015, 02:40 PM
Post #45


Member
***

Group: Members
Posts: 107
Joined: 1-August 14
Member No.: 7227



QUOTE (robspace54b @ Jan 16 2015, 03:11 PM) *
Here are a couple more Beagle2 photos showing the UHF antenna (yellow square)

I read in an article that one "lesson learnt", already being adopted in upcoming Exomars mission, is the lander to continuously send data to orbiter during EDL.
I think an additional lesson learnt is "don't cover the only one antenna by 4 plates", as one single failure out of 4 will compromise whole mission. Maybe a "contingency omnidirectional low power autonomous-battery external antenna" will become a standard in all next landers?


QUOTE (Phil Stooke @ Jan 17 2015, 10:09 PM) *
Looking at the details. The landing site is about 5 km from the middle of the post-landing tracking ellipse, but about 30 km from the middle of the pre-landing target ellipse. Some reports confuse the two. It was not 5 km off target.

I am curious: why did it take so long to find Beagle2 if it is within the planned landing ellipse? Is this the first ever shot HIRISE image of the area?


QUOTE (PDP8E @ Jan 18 2015, 03:58 AM) *
The three gas bags protecting Beagle were supposed to be 'ejected' away from Beagle after landing

This is weird, I was not aware of it.
Looking for and EDL animation I found this also weird video; guess made by who? smile.gif
http://youtu.be/YjNyweyGwHQ

Airbags do not even appear in this video... Beagle is quite crashing rather than landing! smile.gif

A better, official video from internet archive:
http://web.archive.org/web/20071006015240/...t_a_640x368.mov
From:
http://www.beagle2.com/resources/video-album.htm

lo-res animation attached ( 160x192).
Attached File(s)
Attached File  descent_a_160x192.mov ( 699.06K ) Number of downloads: 117
 
Go to the top of the page
 
+Quote Post

5 Pages V  < 1 2 3 4 5 >
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 27th May 2017 - 06:25 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 a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.