IPB

Welcome Guest ( Log In | Register )

Rover Orientation Data, Where can one find detailed rover orientation data?
CosmicRocker
post May 28 2011, 04:20 AM
Post #1


Senior Member
****

Group: Members
Posts: 2228
Joined: 1-December 04
From: Marble Falls, Texas, USA
Member No.: 116



I am trying to quantify Spirit's final resting orientation, but I would generally like to learn how to determine the orientation of either rover for any particular sol. I'm sure this data is in the MMB files somewhere, but I haven't been able to identify it. Likewise, I am sure it is somewhere in the Analyst's Notebook database and/or the Pancam data tracking database, but again, I can't find it.

Spirit's final orientation is the main thing I am looking for, but any orientation assistance would be greatly appreciated.

Thanks.


--------------------
...Tom

I'm not a Space Fan, I'm a Space Exploration Enthusiast.
Go to the top of the page
 
+Quote Post
 
Start new topic
Replies
CosmicRocker
post Jun 3 2011, 05:10 PM
Post #2


Senior Member
****

Group: Members
Posts: 2228
Joined: 1-December 04
From: Marble Falls, Texas, USA
Member No.: 116



Mark: Thanks for taking the time to post those informative comments. You answered many of the questions that have come up in this discussion. I am especially pleased to get your verification on the orientation angles.

Now that we know that we are converting the quaternion data correctly, the only question remaining in my mind is how accurate is the final orientation. I did a little more digging around in the Analyst's Notebook and discovered that a "Get Quick Fine Attitude" was performed on sol 2164 and that there were only two subsequent drive attempts (one on sol 2165 and the last on sol 2169). These drives were attempts to improve the rover's northerly tilt for the coming winter. The mission Manager's reports indicate little improvement was achieved.

I am going to conclude that the final orientation is accurate, since there were only two attempts to move the rover after the final QFA.

I also found this nifty little map attached to the documentation from those sols showing Spirit pointing to the heading we expected. smile.gif
Attached Image


--------------------
...Tom

I'm not a Space Fan, I'm a Space Exploration Enthusiast.
Go to the top of the page
 
+Quote Post

Posts in this topic
- CosmicRocker   Rover Orientation Data   May 28 2011, 04:20 AM
- - djellison   The PDS label label for just about every image, I ...   May 28 2011, 04:27 AM
- - CosmicRocker   Thanks, Doug. I wasn't aware of the label dat...   May 28 2011, 04:59 PM
|- - AndyG   QUOTE (CosmicRocker @ May 28 2011, 05:59 ...   May 30 2011, 10:35 AM
- - CosmicRocker   I'm just following up on my own question. I f...   May 29 2011, 06:28 AM
- - nprev   Tom, I don't know if I'd discard the attit...   May 29 2011, 07:35 AM
- - CosmicRocker   Thanks for the support, Nick. I haven't given...   May 30 2011, 05:43 AM
- - nprev   Tom, my experience with inertial nav systems is al...   May 30 2011, 01:06 PM
- - jamescanvin   Tom, I played around with rover quaternions years ...   May 30 2011, 01:13 PM
- - nprev   James, all I can think is that the heading figure ...   May 30 2011, 04:38 PM
- - djellison   I could believe a heading of 310 deg. They do fin...   May 30 2011, 04:41 PM
- - Tesheiner   IIRC the rover's attitude is recalculated when...   May 30 2011, 05:26 PM
- - nprev   Eduardo, do you mean for heading? I don't thin...   May 30 2011, 05:40 PM
- - CosmicRocker   This is turning into quite an interesting topic. ...   May 30 2011, 07:45 PM
- - CosmicRocker   Aside from simply wanting to know what Spirit...   May 31 2011, 05:05 AM
- - CosmicRocker   QUOTE (djellison @ May 30 2011, 10:41 AM)...   Jun 2 2011, 05:53 AM
|- - AndyG   Looking at these angles makes me wonder what the r...   Jun 2 2011, 11:02 AM
- - CosmicRocker   Of course, most of those digits are meaningless. ...   Jun 2 2011, 05:43 PM
- - Deimos   A few thoughts on the IMU/QFA issue ... - The IMU...   Jun 2 2011, 08:18 PM
- - CosmicRocker   Mark: Thanks for taking the time to post those in...   Jun 3 2011, 05:10 PM
- - nprev   Yes, thank you, Deimos, for taking the time for th...   Jun 4 2011, 12:07 AM
- - CosmicRocker   Now that we have Spirit's final orientation de...   Jun 4 2011, 09:05 PM


Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 23rd April 2024 - 03:52 PM
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.