Automated astronaut traverses with minimum metabolic workload : Accessing permanently shadowed regions near the lunar south pole
Altres ajuts: acords transformatius de la UAB The Artemis exploration zone is a topographically complex impact-cratered terrain. Steep undulating slopes pose a challenge for walking extravehicular activities (EVAs) anticipated for the Artemis III and subsequent missions. Using 5 m/pixel Lunar Orbite...
Main Authors: | , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
1481
|
Subjects: | |
Online Access: | https://ddd.uab.cat/record/284640 |
id |
ftuabarcelonapb:oai:ddd.uab.cat:284640 |
---|---|
record_format |
openpolar |
spelling |
ftuabarcelonapb:oai:ddd.uab.cat:284640 2023-12-24T10:24:54+01:00 Automated astronaut traverses with minimum metabolic workload : Accessing permanently shadowed regions near the lunar south pole Peña-Asensio, Eloy Sutherland, Jennifer Tripathi, Prateek Mason, Kashauna Goodwin, Arthur Bickel, Valentin Tertius Kring, David A. 2024 application/pdf https://ddd.uab.cat/record/284640 eng eng European Commission 847439 European Commission 865657 Acta Astronautica Vol. 214 (January 2024), p. 324-342 https://ddd.uab.cat/record/284640 urn:10.1016/j.actaastro.2023.10.010 urn:oai:ddd.uab.cat:284640 urn:scopus_id:85175740190 urn:articleid:00945765v214p324 open access Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. https://creativecommons.org/licenses/by/4.0/ Artemis Permanently shadowed regions Lunar south pole Astronaut Article 1481 ftuabarcelonapb 2023-11-29T00:54:38Z Altres ajuts: acords transformatius de la UAB The Artemis exploration zone is a topographically complex impact-cratered terrain. Steep undulating slopes pose a challenge for walking extravehicular activities (EVAs) anticipated for the Artemis III and subsequent missions. Using 5 m/pixel Lunar Orbiter Laser Altimeter (LOLA) measurements of the surface, an automated Python pipeline was developed to calculate traverse paths that minimize metabolic workload. The tool combines a Monte Carlo method with a minimum-cost path algorithm that assesses cumulative slope over distances between a lander and stations, as well as between stations. To illustrate the functionality of the tool, optimized paths to permanently shadowed regions (PSRs) are calculated around potential landing sites 001, nearby location 001(6), and 004, all within the Artemis III 'Connecting Ridge' candidate landing region. We identified 521 PSRs and computed (1) traverse paths to accessible PSRs within 2 km of the landing sites, and (2) optimized descents from host crater rims into each PSR. Slopes are limited to 15° and previously identified boulders are avoided. Surface temperature, astronaut body illumination, regolith bearing capacity, and astronaut-to-lander direct view are simultaneously evaluated. Travel times are estimated using Apollo 12 and 14 walking EVA data. A total of 20 and 19 PSRs are accessible from sites 001 and 001(6), respectively, four of which maintain slopes <10°. Site 004 provides access to 11 PSRs, albeit with higher EVA workloads. From the crater rims, 94 % of PSRs can be accessed. All round-trip traverses from potential landing sites can be performed in under 2 h with a constant walk. Traverses and descents to PSRs are compiled in an atlas to support Artemis mission planning. Article in Journal/Newspaper South pole Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB Lola ENVELOPE(-44.700,-44.700,-60.717,-60.717) South Pole The Landing ENVELOPE(-45.689,-45.689,-60.733,-60.733) |
institution |
Open Polar |
collection |
Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
op_collection_id |
ftuabarcelonapb |
language |
English |
topic |
Artemis Permanently shadowed regions Lunar south pole Astronaut |
spellingShingle |
Artemis Permanently shadowed regions Lunar south pole Astronaut Peña-Asensio, Eloy Sutherland, Jennifer Tripathi, Prateek Mason, Kashauna Goodwin, Arthur Bickel, Valentin Tertius Kring, David A. Automated astronaut traverses with minimum metabolic workload : Accessing permanently shadowed regions near the lunar south pole |
topic_facet |
Artemis Permanently shadowed regions Lunar south pole Astronaut |
description |
Altres ajuts: acords transformatius de la UAB The Artemis exploration zone is a topographically complex impact-cratered terrain. Steep undulating slopes pose a challenge for walking extravehicular activities (EVAs) anticipated for the Artemis III and subsequent missions. Using 5 m/pixel Lunar Orbiter Laser Altimeter (LOLA) measurements of the surface, an automated Python pipeline was developed to calculate traverse paths that minimize metabolic workload. The tool combines a Monte Carlo method with a minimum-cost path algorithm that assesses cumulative slope over distances between a lander and stations, as well as between stations. To illustrate the functionality of the tool, optimized paths to permanently shadowed regions (PSRs) are calculated around potential landing sites 001, nearby location 001(6), and 004, all within the Artemis III 'Connecting Ridge' candidate landing region. We identified 521 PSRs and computed (1) traverse paths to accessible PSRs within 2 km of the landing sites, and (2) optimized descents from host crater rims into each PSR. Slopes are limited to 15° and previously identified boulders are avoided. Surface temperature, astronaut body illumination, regolith bearing capacity, and astronaut-to-lander direct view are simultaneously evaluated. Travel times are estimated using Apollo 12 and 14 walking EVA data. A total of 20 and 19 PSRs are accessible from sites 001 and 001(6), respectively, four of which maintain slopes <10°. Site 004 provides access to 11 PSRs, albeit with higher EVA workloads. From the crater rims, 94 % of PSRs can be accessed. All round-trip traverses from potential landing sites can be performed in under 2 h with a constant walk. Traverses and descents to PSRs are compiled in an atlas to support Artemis mission planning. |
format |
Article in Journal/Newspaper |
author |
Peña-Asensio, Eloy Sutherland, Jennifer Tripathi, Prateek Mason, Kashauna Goodwin, Arthur Bickel, Valentin Tertius Kring, David A. |
author_facet |
Peña-Asensio, Eloy Sutherland, Jennifer Tripathi, Prateek Mason, Kashauna Goodwin, Arthur Bickel, Valentin Tertius Kring, David A. |
author_sort |
Peña-Asensio, Eloy |
title |
Automated astronaut traverses with minimum metabolic workload : Accessing permanently shadowed regions near the lunar south pole |
title_short |
Automated astronaut traverses with minimum metabolic workload : Accessing permanently shadowed regions near the lunar south pole |
title_full |
Automated astronaut traverses with minimum metabolic workload : Accessing permanently shadowed regions near the lunar south pole |
title_fullStr |
Automated astronaut traverses with minimum metabolic workload : Accessing permanently shadowed regions near the lunar south pole |
title_full_unstemmed |
Automated astronaut traverses with minimum metabolic workload : Accessing permanently shadowed regions near the lunar south pole |
title_sort |
automated astronaut traverses with minimum metabolic workload : accessing permanently shadowed regions near the lunar south pole |
publishDate |
1481 |
url |
https://ddd.uab.cat/record/284640 |
long_lat |
ENVELOPE(-44.700,-44.700,-60.717,-60.717) ENVELOPE(-45.689,-45.689,-60.733,-60.733) |
geographic |
Lola South Pole The Landing |
geographic_facet |
Lola South Pole The Landing |
genre |
South pole |
genre_facet |
South pole |
op_relation |
European Commission 847439 European Commission 865657 Acta Astronautica Vol. 214 (January 2024), p. 324-342 https://ddd.uab.cat/record/284640 urn:10.1016/j.actaastro.2023.10.010 urn:oai:ddd.uab.cat:284640 urn:scopus_id:85175740190 urn:articleid:00945765v214p324 |
op_rights |
open access Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. https://creativecommons.org/licenses/by/4.0/ |
_version_ |
1786200128007176192 |