Dust Storm- Opportunity EOM, the end of the beginning of a new era in robotic spaceflight |
Dust Storm- Opportunity EOM, the end of the beginning of a new era in robotic spaceflight |
Feb 1 2019, 10:27 PM
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#346
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Member Group: Members Posts: 444 Joined: 1-July 05 From: New York City Member No.: 424 |
Another fine elegiacal article about Opportunity and the MER mission, this one much longer, over 2500 words in Scientific American by Rebecca Boyle, a science writer who I should have been following.
https://www.scientificamerican.com/article/...oaches-its-end/ There’s nothing particularly new for our crowd, but it's deftly written, contains a well-informed overview, and includes pleasing short profiles of Ray Arvidson, Steve Squyers, and particularly of Deputy Project Scientist Abigail Fraeman, whose mentors include Emily Lakdawalla, through Lakdawalla's first Planetary Society project, “Red Rover Goes to Mars” for high school students. |
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Feb 3 2019, 03:22 AM
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#347
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Member Group: Members Posts: 507 Joined: 10-September 08 Member No.: 4338 |
http://www.planetary.org/explore/space-top...nniversary.html
Discussion about so-called "Hail Mary" recovery attempts. |
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Feb 6 2019, 05:00 PM
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#348
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Member Group: Members Posts: 610 Joined: 23-February 07 From: Occasionally in Columbia, MD Member No.: 1764 |
My take is that the likelyhood of Oppy waking up increases as time goes by until end of January 2019 then it drops quite rapidly. The idea being that between Ls 290 and Ls 310 we have seen cleaning events. Maybe moot at this point, but the evidence is that it is dust devils specifically, rather than gusts overall, that are principally responsible for clearing events. See my paper in Icarus https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6350794 |
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Feb 6 2019, 05:59 PM
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#349
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Senior Member Group: Members Posts: 2511 Joined: 13-September 05 Member No.: 497 |
See my paper in Icarus Interesting paper. It's surprising and disappointing to me that the solar array performance data remains unreleased. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Feb 7 2019, 05:29 AM
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#350
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Member Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
Maybe moot at this point, but the evidence is that it is dust devils specifically, rather than gusts overall, that are principally responsible for clearing events. See my paper in Icarus https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6350794 Regardless of what the source is, we all call them cleaning events, whether strong winds, dust devils, or other unknown aeolian events, between Ls290 and 310 historically we have seen the highest number of cleaning events for the past 7 Martian Years. Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Feb 12 2019, 03:24 AM
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#351
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Member Group: Members Posts: 507 Joined: 10-September 08 Member No.: 4338 |
I've been keeping a log of the spurious locks, ostensibly on Opportunity, since November.
They occurred at these times: 3:37 AM - 1 Nov 2018 from Paddys River, Canberra 6:25 AM - 4 Nov 2018 from Paddys River, Canberra 5:20 AM - 7 Nov 2018 from Paddys River, Canberra 11:02 AM - 14 Nov 2018 from Robledo de Chavela, Espa<C3><B1>a 12:46 PM - 15 Nov 2018 from Robledo de Chavela, Espa<C3><B1>a 1:01 PM - 15 Nov 2018 from Robledo de Chavela, Espa<C3><B1>a 1:59 PM - 17 Nov 2018 from Robledo de Chavela, Espa<C3><B1>a 2:51 PM - 18 Nov 2018 from Robledo de Chavela, Espa<C3><B1>a 3:44 PM - 24 Nov 2018 from California, USA 5:57 PM - 25 Nov 2018 from California, USA 8:24 PM - 26 Nov 2018 from California, USA 9:52 PM - 30 Nov 2018 from California, USA 2:09 PM - 29 Dec 2018 from Robledo de Chavela, Espa<C3><B1>a 7:01 PM - 30 Dec 2018 from California, USA 7:37 PM - 30 Dec 2018 from California, USA 8:47 PM - 5 Jan 2019 from California, USA 9:47 PM - 9 Jan 2019 from California, USA 9:39 PM - 9 Feb 2019 from California, USA Very frequent during November and then becoming less frequent. Perhaps the software has been improved to better rule out false locks. Although the reports tend to blame MRO, I think it is actually Maven that was the subject of many of the false locks. |
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Feb 12 2019, 09:40 PM
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#352
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Feb 12 2019, 10:01 PM
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#353
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Member Group: Members Posts: 578 Joined: 5-November 04 From: Denmark Member No.: 107 |
So this is it probably. An ending.
-------------------- "I want to make as many people as possible feel like they are part of this adventure. We are going to give everybody a sense of what exploring the surface of another world is really like"
- Steven Squyres |
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Feb 12 2019, 10:25 PM
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#354
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Senior Member Group: Members Posts: 2082 Joined: 13-February 10 From: Ontario Member No.: 5221 |
This is going to be a tough one to watch folks. Just remembering what Steve Squyres said in a recent interview; an honourable way to go. No accidental commands to turn off, programming glitches, unit conversion mix-ups, or anything like that. Mars allowed Oppy to survive, until it didn't....
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Feb 13 2019, 03:32 AM
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#355
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Forum Contributor Group: Members Posts: 1372 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
Oh man... .
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Feb 13 2019, 05:57 AM
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#356
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Member Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
This is my way to say goodbye to Oppy. 15 years, 13Km and I don't know how many sequences. Thank you Doug for creating this forum and allowing me to share the road with all of you. I am eternally grateful to Mark Maimone for introducing me to the MER folks. I still can't believe that they let an Italian driver roam on Mars.
Paolo, signing off. PS: the URL links my my server at home which has a self signed certificate, so don't be surprised if you get a message saying it is a dangerous web site. -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Feb 13 2019, 06:26 AM
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#357
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Member Group: Members Posts: 153 Joined: 8-February 04 From: Phoenix, AZ USA Member No.: 9 |
Sleep well little rover. You did good. We know where you are, and we will be there when you awake again. Sweet dreams.
-------------------- Tim Demko
BioLink site |
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Feb 13 2019, 10:25 AM
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#358
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
A sad day but a truly incredible journey.
I put Ryan Anderson's poem to my favourite Oppy comp... ...and I imagined a sequel to Emily's Curiosity book a while back... My thoughts with all the engineers & drivers. -------------------- |
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Feb 13 2019, 04:10 PM
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#359
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Member Group: Members Posts: 290 Joined: 29-December 05 From: Ottawa, ON Member No.: 624 |
I don't think anyone in their wildest fantasies would have dared to dream that this amazing rover would convert a 90 day mission into 14+ years. All my congrats to the MER team for an amazing run.
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Feb 13 2019, 04:10 PM
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#360
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Newbie Group: Members Posts: 1 Joined: 20-July 11 Member No.: 6075 |
Opportunity...how I will miss you. Your spectacular landing. The daily updates. The insane craters you visited.
I remember fondly you driving off into what I assumed at the time was essentially the void.....an absolutely impossible drive distance to Endeavor that I laughed out loud about when I first heard they were going to attempt it. Laughably impossible I thought. Man, did you ever prove me wrong. Opportunity....you are probably the biggest rock star of all unmanned space explorations humans have ever done....certainly without question the biggest on Mars. I doubt anything will ever trump you there (unless one day something physically finds running water....a man can dream....) One day, men will build a shrine around you.....until that day rest old friend. Your work is done. |
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