IPB

Welcome Guest ( Log In | Register )

85 Pages V  « < 67 68 69 70 71 > »   
Reply to this topicStart new topic
InSight Surface Operations, 26 Nov 2018- 21 Dec 2022
PaulH51
post Oct 18 2020, 07:45 PM
Post #1021


Senior Member
****

Group: Members
Posts: 2424
Joined: 30-January 13
From: Penang, Malaysia.
Member No.: 6853



QUOTE (Phil Stooke @ Oct 19 2020, 02:49 AM) *
More soil scraping over the pit on sol 673.

This is how it was predicticted in the DLR blog post link smile.gif
Attached Image


Go to the top of the page
 
+Quote Post
stevesliva
post Oct 20 2020, 02:55 PM
Post #1022


Senior Member
****

Group: Members
Posts: 1576
Joined: 14-October 05
From: Vermont
Member No.: 530



QUOTE (PaulH51 @ Oct 18 2020, 02:45 PM) *
This is how it was predicticted in the DLR blog post link smile.gif


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 ...
Go to the top of the page
 
+Quote Post
Brian Swift
post Oct 20 2020, 11:45 PM
Post #1023


Member
***

Group: Members
Posts: 403
Joined: 18-September 17
Member No.: 8250



QUOTE (Phil Stooke @ Oct 18 2020, 11:49 AM) *
More soil scraping over the pit on sol 673.

My three indoor cats approve.
Go to the top of the page
 
+Quote Post
JRehling
post Oct 21 2020, 03:17 PM
Post #1024


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.
Go to the top of the page
 
+Quote Post
propguy
post Oct 21 2020, 05:27 PM
Post #1025


Junior Member
**

Group: Members
Posts: 48
Joined: 8-August 12
Member No.: 6507



QUOTE (JRehling @ Oct 21 2020, 09:17 AM) *
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.
Go to the top of the page
 
+Quote Post
Phil Stooke
post Oct 21 2020, 08:21 PM
Post #1026


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)
Go to the top of the page
 
+Quote Post
PaulH51
post Oct 23 2020, 09:09 AM
Post #1027


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

Attached Image


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.
Go to the top of the page
 
+Quote Post
JRehling
post Oct 23 2020, 03:21 PM
Post #1028


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
Go to the top of the page
 
+Quote Post
PaulM
post Oct 30 2020, 07:26 PM
Post #1029


Member
***

Group: Members
Posts: 206
Joined: 15-August 07
From: Shrewsbury, Shropshire
Member No.: 3233



QUOTE (JRehling @ Oct 23 2020, 04:21 PM) *
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.
Go to the top of the page
 
+Quote Post
Phil Stooke
post Nov 2 2020, 06:04 PM
Post #1030


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.

Attached Image


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)
Go to the top of the page
 
+Quote Post
Phil Stooke
post Nov 2 2020, 07:11 PM
Post #1031


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)
Go to the top of the page
 
+Quote Post
Phil Stooke
post Nov 2 2020, 07:15 PM
Post #1032


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)
Go to the top of the page
 
+Quote Post
antipode
post Nov 2 2020, 09:24 PM
Post #1033


Member
***

Group: Members
Posts: 314
Joined: 1-October 06
Member No.: 1206



Finally! Good news.

P
Go to the top of the page
 
+Quote Post
PaulH51
post Nov 15 2020, 11:14 AM
Post #1034


Senior Member
****

Group: Members
Posts: 2424
Joined: 30-January 13
From: Penang, Malaysia.
Member No.: 6853



Sol 700 arm activity animated GIF (8 IDC frames).

It looks like there are gaps in the timestamps, so more images are likely to follow

(reduced to 800x800 to fit upload limit)

Attached Image
Go to the top of the page
 
+Quote Post
stevesliva
post Nov 17 2020, 03:54 PM
Post #1035


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.
Go to the top of the page
 
+Quote Post

85 Pages V  « < 67 68 69 70 71 > » 
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 19th March 2024 - 09:00 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 funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.