Cars In Space - Unmanned Spaceflight.com

Cars In Space

djellison View Member Profile	Oct 28 2008, 08:10 AM Post #1
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1	http://www.oobject.com/category/cars-in-space/ I think you know what to do Yeah - the LRV's were cool - but they did the job they were designed to do. MER has done that, and then some. MERFTW (and Stooke - none of that Lunar nonsense ) Doug

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dvandorn View Member Profile	Nov 2 2008, 05:40 PM Post #2
Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15	Hmmmm.. my admittedly imperfect memory does recall something along those lines. Something about 2,000 cycles being what the MER batteries were rated for. As I recall, it was discussed in the same context as the death of Viking 1, where the batteries were actually deteriorating, their shortening charging cycles were creating a low-energy state, and the attempt to rework the charging cycles via a software update resulted in overwriting antenna pointing information in its limited memory and thus broke off its ability to communicate. Anyone else remember that discussion? I'm positive it had to be here on this forum somewhere... -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain

Posts in this topic

djellison Cars In Space Oct 28 2008, 08:10 AM

Phil Stooke Duh - what? What did I do? Phil Oct 28 2008, 03:04 PM

mhoward I think we're supposed to vote for our favorit... Oct 28 2008, 03:08 PM

ilbasso Ehhhh....some of those rovers appear to be infeste... Oct 28 2008, 10:42 PM

TheChemist Shhh.... The official Party line is to vote for Un... Oct 29 2008, 12:01 AM

djellison Well - we've put the UMSF 'founding sister... Oct 29 2008, 12:09 AM

Zvezdichko There are some rovers missing PROP-M and Minerva Oct 29 2008, 12:10 PM

Toma B QUOTE (Zvezdichko @ Oct 29 2008, 03:10 PM... Oct 29 2008, 05:59 PM

dvandorn I will disagree slightly with Doug here on his ele... Oct 30 2008, 04:33 AM

djellison QUOTE (dvandorn @ Oct 30 2008, 04:33 AM) ... Oct 30 2008, 08:28 AM

CosmicRocker Yep. We've seen all the nasty conditions our ... Oct 31 2008, 06:45 AM

dvandorn I'm not trying to belabor a point, here, but i... Oct 31 2008, 11:11 AM

djellison QUOTE (dvandorn @ Oct 31 2008, 11:11 AM) ... Oct 31 2008, 03:07 PM

ugordan Um... 18 years? The half-life of cobalt-57 in Moss... Oct 31 2008, 03:47 PM

ilbasso I guess the question about "operational... Oct 31 2008, 02:38 PM

djellison Some people need to step away from the keyboard fr... Oct 31 2008, 02:41 PM

djellison Cobalt-57 in the Mossbauer - it has dropped - sign... Oct 31 2008, 03:49 PM

dvandorn I stand corrected! -the other Doug Oct 31 2008, 07:53 PM

tanjent On the subject of electric power - I remember in t... Nov 2 2008, 06:19 AM

djellison I don't ever remember battery life being menti... Nov 2 2008, 10:23 AM

climber I think the discution was about number of battery ... Nov 2 2008, 10:34 AM

djellison Yes - I know the sort of issue you're talking... Nov 2 2008, 11:28 AM

dvandorn Hmmmm.. my admittedly imperfect memory does recal... Nov 2 2008, 05:40 PM

djellison Looking at the JPL tech report server - they cite ... Nov 2 2008, 07:04 PM

dvandorn Thanks, Doug. I remembered it was in the single t... Nov 2 2008, 07:58 PM

helvick My recollection was that we (well I at any rate) h... Nov 3 2008, 01:36 AM

tanjent I googled "MER battery life" and turned ... Nov 3 2008, 01:16 PM

djellison Most of your four points are covered in the variou... Nov 3 2008, 01:28 PM

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