Author Topic: Mars Pathfinder Update and Discussion  (Read 3320 times)

Offline Star One

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Mars Pathfinder Update and Discussion
« on: 03/18/2019 12:59 pm »
A very belated update

NASA'S MARS PATHFINDER MAY HAVE LANDED AT THE EDGE OF AN ANCIENT INLAND MARTIAN SEA

Quote
A new paper just published indicates that NASA's Mars Pathfinder rover landed between what was once a vast northern ocean and an inland sea to the south. The area around Pathfinder's landing site was once subjected to catastrophic flooding from that sea, with some floods reaching heights of nearly a kilometer and moving at over 500 kilometers per hour!
« Last Edit: 03/19/2019 10:36 pm by zubenelgenubi »

Offline zubenelgenubi

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Re: Mars Pathfinder Update and Discussion
« Reply #1 on: 03/19/2019 10:37 pm »
A very belated update

NASA'S MARS PATHFINDER MAY HAVE LANDED AT THE EDGE OF AN ANCIENT INLAND MARTIAN SEA

Quote
A new paper just published indicates that NASA's Mars Pathfinder rover landed between what was once a vast northern ocean and an inland sea to the south. The area around Pathfinder's landing site was once subjected to catastrophic flooding from that sea, with some floods reaching heights of nearly a kilometer and moving at over 500 kilometers per hour!

IIRC, the landing site was chosen because it is in an outflow channel, Ares Vallis.
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Offline Nomadd

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Re: Mars Pathfinder Update and Discussion
« Reply #2 on: 03/20/2019 02:24 am »
 Bought my first computer so I could get into the Pathfinder chat room. Told people not to worry about the comms trouble with Sojourner when it landed because I'd read the detailed specs on the radio and knew a slight temperature mismatch after landing would probably move the ends out of sync for a few hours.
« Last Edit: 03/20/2019 02:24 am by Nomadd »
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Offline spacexplorer

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Re: Mars Pathfinder Update and Discussion
« Reply #3 on: 03/10/2021 09:21 am »
3d data for the mission now available as a single ZIP file rather than thousands of file to be downloaded one by one:
https://pds-geosciences.wustl.edu/mpf/mpfl-m-imp-5-3dposition-v1.zip

Browsable/downloadable single files:
https://pds-geosciences.wustl.edu/mpf/

Files are in VRML1.0 format, not supported by most 3d viewer; conversion nto VRML 2.0 needed: converter from Silicon Graphics, same company which created original VRML models in 1997 (now all links are broken)

It would be cool to try 3d reconstruction using modern technologies, like it is being done for Perseverance landing site, but zip files for imagery are not available yet, they must be downloaded one by one...

Other resources:
http://win98.altervista.org/pathfinder/

Offline edzieba

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Re: Mars Pathfinder Update and Discussion
« Reply #4 on: 03/10/2021 09:46 am »
It would be cool to try 3d reconstruction using modern technologies, like it is being done for Perseverance landing site, but zip files for imagery are not available yet, they must be downloaded one by one...
They appear to be available for bulk download here (Select "All Images: In Query").

Offline spacexplorer

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Re: Mars Pathfinder Update and Discussion
« Reply #5 on: 03/10/2021 12:27 pm »
Very interesting site to search/filter images; about the bulk download, I see it creates a batch file containing the list of wget commands needed to download each single file:


wget -nc -O i930290r.img https://pds-imaging.jpl.nasa.gov/pds/prod?q=OFSN+%%3D+/data/mpf/imp///mpim_0001/apxssite/seq0071/c1246xxx/i930290r.img+AND+RT+%%3D+RAW
wget -nc -O i930290r.img.lbl https://pds-imaging.jpl.nasa.gov/pds/prod?q=OFSN+%%3D+/data/mpf/imp///mpim_0001/apxssite/seq0071/c1246xxx/i930290r.img+AND+RT+%%3D+PDS_LABEL
wget -nc -O i930302r.img https://pds-imaging.jpl.nasa.gov/pds/prod?q=OFSN+%%3D+/data/mpf/imp///mpim_0001/apxssite/seq0071/c1246xxx/i930302r.img+AND+RT+%%3D+RAW
wget -nc -O i930302r.img.lbl https://pds-imaging.jpl.nasa.gov/pds/prod?q=OFSN+%%3D+/data/mpf/imp///mpim_0001/apxssite/seq0071/c1246xxx/i930302r.img+AND+RT+%%3D+PDS_LABEL
wget -nc -O i930321r.img https://pds-imaging.jpl.nasa.gov/pds/prod?q=OFSN+%%3D+/data/mpf/imp///mpim_0001/apxssite/seq0071/c1246xxx/i930321r.img+AND+RT+%%3D+RAW



Url to download "mastcam" (actually "IMP") images pointing at specific elevation/azimuth direction:
https://pds-imaging.jpl.nasa.gov/search/?fq=ATLAS_MISSION_NAME:"mars pathfinder"&fq=-ATLAS_THUMBNAIL_URL:brwsnotavail.jpg&fq=ATLAS_INSTRUMENT_NAME:imp&fq=NUMBER_OF_LINES:"248"&fq=INSTRUMENT_ELEVATION:[0 TO 10]&fq=INSTRUMENT_AZIMUTH:[0 TO 10]&q=*:*

Exploded:
https://pds-imaging.jpl.nasa.gov/search/?
fq=ATLAS_MISSION_NAME:"mars pathfinder"&
fq=ATLAS_INSTRUMENT_NAME:imp&
fq=NUMBER_OF_LINES:"248"& // Available: 31, 50, 64, 72, 128, 136, 144, 200, 248, 256
fq=INSTRUMENT_ELEVATION:[0 TO 10]& // In degrees
fq=INSTRUMENT_AZIMUTH:[0 TO 10]& // In degrees
fq=-ATLAS_THUMBNAIL_URL:brwsnotavail.jpg&// Don't know, added automatically
q=*:* // Don't know, added automatically

Offline spacexplorer

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Re: Mars Pathfinder Update and Discussion
« Reply #6 on: 03/10/2021 12:36 pm »
Rover images query:

https://pds-imaging.jpl.nasa.gov/search/?fq=-ATLAS_THUMBNAIL_URL:brwsnotavail.jpg&fq=ATLAS_MISSION_NAME:"mars pathfinder"&fq=ATLAS_SPACECRAFT_NAME:sojourner&fq=ATLAS_INSTRUMENT_NAME:rvr&fq=AZIMUTH:[0 TO 10]&fq=NUMBER_OF_LINES:"491"&fq=ELEVATION:[0 TO 10]&fq=ROVER_HEADING:"1978"&fq=ROVER_POSITION_X:"3.079"&fq=ROVER_POSITION_Y:"-2.703"&q=*:*

Split:

https://pds-imaging.jpl.nasa.gov/search/?
fq=ATLAS_MISSION_NAME:"mars pathfinder"&
fq=ATLAS_SPACECRAFT_NAME:sojourner& // rover
fq=ATLAS_INSTRUMENT_NAME:rvr& // rover camera
fq=AZIMUTH:[0 TO 10]&
fq=ELEVATION:[0 TO 10]&
fq=NUMBER_OF_LINES:"491"&
fq=ROVER_HEADING:"1978"&  // ???  Dozens of values available
fq=ROVER_POSITION_X:"3.079"&
fq=ROVER_POSITION_Y:"-2.703"&
fq=-ATLAS_THUMBNAIL_URL:brwsnotavail.jpg&
q=*:*
« Last Edit: 08/08/2022 06:40 pm by spacexplorer »

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