InSight Surface Operations, 26 Nov 2018- 21 Dec 2022 |
InSight Surface Operations, 26 Nov 2018- 21 Dec 2022 |
Oct 18 2020, 07:45 PM
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#1021
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Senior Member Group: Members Posts: 2424 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
More soil scraping over the pit on sol 673. This is how it was predicticted in the DLR blog post link |
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Oct 20 2020, 02:55 PM
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#1022
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Senior Member Group: Members Posts: 1576 Joined: 14-October 05 From: Vermont Member No.: 530 |
This is how it was predicticted in the DLR blog post link So, things are on a two-week cadence: QUOTE the increased demands on the operations team associated with managing the reduced power availability meant that the Mole and the scoop could only be commanded fortnightly from September onwards. A total of three hammering operations have been performed since then, twice with 100 strokes on 22 August (Sol 618) and 5 September (Sol 632) and finally once with 250 strokes on 19 September (Sol 645). ... the scoop was lifted on 3 October ... two parallel scoop movements should be conducted on Saturday 17 October (Sol 659). Afterwards ...
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Oct 20 2020, 11:45 PM
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#1023
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Member Group: Members Posts: 403 Joined: 18-September 17 Member No.: 8250 |
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Oct 21 2020, 03:17 PM
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#1024
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
Would it still count as "unmanned" spaceflight if we sent a cat to Mars? We sent a mole.
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Oct 21 2020, 05:27 PM
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#1025
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Junior Member Group: Members Posts: 48 Joined: 8-August 12 Member No.: 6507 |
Would it still count as "unmanned" spaceflight if we sent a cat to Mars? We sent a mole. A cat on Mars was already done! This website shows how Steve the Cat flew on Phoenix http://www.stevethecat.com. Not sure how the website creator got those photos since many of them are unreleased ones from our build, but he did. On Phoenix we followed Steve's exploits with a mix of humor and confusion. |
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Oct 21 2020, 08:21 PM
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#1026
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Solar System Cartographer Group: Members Posts: 10122 Joined: 5-April 05 From: Canada Member No.: 227 |
Nice story!
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Oct 23 2020, 09:09 AM
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#1027
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Senior Member Group: Members Posts: 2424 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Low power generation is affecting surface operations:
Dust on the solar arrays has been steadily accumulating since landing, that dust has reduced the electricity generated and delivered to the landers batteries. Seasonal storms have have recently lofted dust into the atmosphere, filtering sunlight, and reducing the available power even further. Mission data like electrical charge rates and atmospheric opacity (tau) is made available to the public via NASA's planetary data system (PDS). The most recent PDS mission data is about 3 months old, and the next update is not scheduled until January next year. Mission Manager Reports (MMR) in the PDS document the electrical charge rates between landing and about 3 months ago. They record a general decline in charge rates, with a sharp drop in the most recent report. As a result of the lower rates of energy generation, the team elected to disable the survival heaters in the robotic arm to save approximately 300 Watt hours (Whr) per sol. However at the end of June, power levels continued to drop so the team elected to place HP3 and some of the environmental instruments (APSS) to be placed into safe-mode. They also adjusted the trip levels for low power which would have placed the entire craft into safe mode. Since then we've seen some of those instruments returned to service. We don't yet know if they were returned to service as a result of an increase in power levels, or if power was diverted from other services, but we did learn in the recent DLR HP3 blog that the HP3 radiometer (RAD) was not fully available due to power issues. A selection of power levels reported in earlier MMRs is detailed below, but the power dropped from a peak at landing of >3000 Whr/Sol to less than 1300 Whr/Sol by the end of June. The sudden drop at the end was a result of a rapid increase in atmospheric opacity (tau) caused by dust storms. In the last report tau was ~1.3 * MMR for Sol 1: >3000 Whr/sol * MMR for Sol 103: ~2800 Whr/sol * MMR for Sol 225-232: ~1950 Whr/sol * MMR for Sol 301-308: ~1900 Whr/sol * MMR for Sol 376-402: ~2100 Whr/sol * MMR for Sol 478-484: ~2100 Whr/sol * MMR for Sol 519-525: ~1975 Whr/sol * MMR for Sol 539-545: <1750 Whr/sol * MMR for Sol 560-566: ~1300 Whr/sol The image used here features one of the landers solar arrays. * Sol 10: charge rate ~3000 Whr/sol. * Sol 227: charge rate ~1950 Whr/sol. * Sol 578: charge rate ~1300 Whr/sol. |
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Oct 23 2020, 03:21 PM
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#1028
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
The decline in power that Paul posts is similar in degree to that of Opportunity, and they are located at about the same latitude. Hopefully, Insight will experience similar good fortune with cleaning events that boost the solar panel production again. Insight, however, lacks the ability to pick a winter parking location that orients its panels at a favorable angle.
https://www.nature.com/articles/s41598-018-35946-8 |
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Oct 30 2020, 07:26 PM
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#1029
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Member Group: Members Posts: 206 Joined: 15-August 07 From: Shrewsbury, Shropshire Member No.: 3233 |
The decline in power that Paul posts is similar in degree to that of Opportunity, and they are located at about the same latitude. Hopefully, Insight will experience similar good fortune with cleaning events that boost the solar panel production again. Insight, however, lacks the ability to pick a winter parking location that orients its panels at a favorable angle. ... Does anyone know whether after 684 SOLS the radio science experiment has been running for long enough to gain useful data? I remember that it was said that Opportunity would have needed to stay parked for more than two Earth years to gain more useful radio science data than it had already collected over its three months parking. |
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Nov 2 2020, 06:04 PM
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#1030
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Solar System Cartographer Group: Members Posts: 10122 Joined: 5-April 05 From: Canada Member No.: 227 |
You could do the analysis at any stage but the results will be better the longer you wait.
Here: https://ui.adsabs.harvard.edu/abs/2020EGUGA....5324B/abstract is a description from May 2020 of the work needed to get good results. it includes lots of other modelling and incorporates atmospheric data, the orbit of Phobos (which is constantly being refined) and other things. In other news, the scoop just pressed down on the soil pile made 2 weeks ago. Here is a visual summary of the last 150 sols of activity with the mole. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 2 2020, 07:11 PM
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#1031
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Solar System Cartographer Group: Members Posts: 10122 Joined: 5-April 05 From: Canada Member No.: 227 |
Re: RISE results:
here: https://ui.adsabs.harvard.edu/abs/2019AGUFM...B0026F/abstract The authors reported nearly a year ago that they already had better results than before. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 2 2020, 07:15 PM
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#1032
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Solar System Cartographer Group: Members Posts: 10122 Joined: 5-April 05 From: Canada Member No.: 227 |
Re: RISE results:
here: https://ui.adsabs.harvard.edu/abs/2019AGUFM...B0026F/abstract The authors reported nearly a year ago that they already had better results than before. And here: http://www.ursi.org/proceedings/procGA20/p...ctLeMaistre.pdf a month ago they are reporting results - except these links are to abstracts without numerical results rather than full papers. But you can see that the work is ongoing and will soon be out. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 2 2020, 09:24 PM
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#1033
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Member Group: Members Posts: 314 Joined: 1-October 06 Member No.: 1206 |
Finally! Good news.
P |
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Nov 15 2020, 11:14 AM
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#1034
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Senior Member Group: Members Posts: 2424 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
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Nov 17 2020, 03:54 PM
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#1035
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Senior Member Group: Members Posts: 1576 Joined: 14-October 05 From: Vermont Member No.: 530 |
I missed the NASA article from 1 month ago that forecasts no hammering until 2021
https://www.jpl.nasa.gov/news/news.php?feature=7765 If they do two rounds of scrape-position-tamp at the 2 week arm-movement cadence, yup, that will take awhile. |
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