Automated astronaut traverses with minimum metabolic workload: Accessing permanently shadowed regions near the lunar south pole
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 s...
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Online Access: | http://hdl.handle.net/10261/356943 https://doi.org/10.1016/j.actaastro.2023.10.010 |
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ftcsic:oai:digital.csic.es:10261/356943 2024-06-09T07:49:36+00:00 Automated astronaut traverses with minimum metabolic workload: Accessing permanently shadowed regions near the lunar south pole Peña-Asensio, E. Sutherland, Jennifer Tripathi, Prateek Mason, Kashauna Goodwin, Arthur Bickel, Valentin T. Kring, David A. European Commission European Research Council 2024 application/pdf http://hdl.handle.net/10261/356943 https://doi.org/10.1016/j.actaastro.2023.10.010 en eng Elsevier #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/865657 info:eu-repo/grantAgreement/EC/H2020/847439 Publisher's version Peña-Asensio, E.; Sutherland, Jennifer; Tripathi, Prateek; Mason, Kashauna; Goodwin, Arthur; Bickel, Valentin T.; Kring, David A.; 2024; Appendix A and Appendix B. Supplementary data for Automated astronaut traverses with minimum metabolic workload: Accessing permanently shadowed regions near the lunar south pole [Dataset]; Elsevier; https://doi.org/10.1016/j.actaastro.2023.10.010 https://doi.org/10.1016/j.actaastro.2023.10.010 Sí Acta Astronautica 214: 324-342 (2024) http://hdl.handle.net/10261/356943 doi:10.1016/j.actaastro.2023.10.010 1879-2030 open Artemis Permanently shadowed regions Lunar south pole Astronaut artículo 2024 ftcsic https://doi.org/10.1016/j.actaastro.2023.10.010 2024-05-14T23:52:28Z 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. E. P. A. thanks funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No. 865657). J. S. is supported by funding from the European Union's Horizon 2020 research and innovation programme under the Marie ... Article in Journal/Newspaper South pole Digital.CSIC (Spanish National Research Council) Lola ENVELOPE(-44.700,-44.700,-60.717,-60.717) South Pole The Landing ENVELOPE(-45.689,-45.689,-60.733,-60.733) Acta Astronautica 214 324 342 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Artemis Permanently shadowed regions Lunar south pole Astronaut |
spellingShingle |
Artemis Permanently shadowed regions Lunar south pole Astronaut Peña-Asensio, E. Sutherland, Jennifer Tripathi, Prateek Mason, Kashauna Goodwin, Arthur Bickel, Valentin T. 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 |
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. E. P. A. thanks funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No. 865657). J. S. is supported by funding from the European Union's Horizon 2020 research and innovation programme under the Marie ... |
author2 |
European Commission European Research Council |
format |
Article in Journal/Newspaper |
author |
Peña-Asensio, E. Sutherland, Jennifer Tripathi, Prateek Mason, Kashauna Goodwin, Arthur Bickel, Valentin T. Kring, David A. |
author_facet |
Peña-Asensio, E. Sutherland, Jennifer Tripathi, Prateek Mason, Kashauna Goodwin, Arthur Bickel, Valentin T. Kring, David A. |
author_sort |
Peña-Asensio, E. |
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 |
publisher |
Elsevier |
publishDate |
2024 |
url |
http://hdl.handle.net/10261/356943 https://doi.org/10.1016/j.actaastro.2023.10.010 |
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 |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/865657 info:eu-repo/grantAgreement/EC/H2020/847439 Publisher's version Peña-Asensio, E.; Sutherland, Jennifer; Tripathi, Prateek; Mason, Kashauna; Goodwin, Arthur; Bickel, Valentin T.; Kring, David A.; 2024; Appendix A and Appendix B. Supplementary data for Automated astronaut traverses with minimum metabolic workload: Accessing permanently shadowed regions near the lunar south pole [Dataset]; Elsevier; https://doi.org/10.1016/j.actaastro.2023.10.010 https://doi.org/10.1016/j.actaastro.2023.10.010 Sí Acta Astronautica 214: 324-342 (2024) http://hdl.handle.net/10261/356943 doi:10.1016/j.actaastro.2023.10.010 1879-2030 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.actaastro.2023.10.010 |
container_title |
Acta Astronautica |
container_volume |
214 |
container_start_page |
324 |
op_container_end_page |
342 |
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1801382318476099584 |