Matches in SemOpenAlex for { <https://semopenalex.org/work/W2275243406> ?p ?o ?g. }
Showing items 1 to 98 of
98
with 100 items per page.
- W2275243406 abstract "Future human exploration of the lunar surface will depend on the ability to predict and model conditions for survivability during Extra-Vehicular Activity (EVAs). Estimating first-order astronaut metrics during EVAs, such as space suit temperature, transportation rover power requirements, suit heater power requirements, etc..., is necessary for the design of future space suits, transport vehicles, and other technologies involved in manned lunar surface operations. These metrics can be derived from knowledge of the locations of shadows cast by surrounding terrain for a given region of interest on the Moon. If shadow locations are known over time, they can also be used for estimation of thermal and power metrics for any technical, robotic, or solar-powered mission components on the lunar surface. Calculation of shadows based on exact sun position for lunar equatorial regions necessitated use of a Moon-centered celestial coordinate system. A Lunar-Celestial Equatorial Coordinate System is analogous to the Earth Equatorial coordinates in celestial geometry. Rather than considering the position of the Sun relative to the Moon by first comparing lunar orientation with the relative position of the Earth, this use of Mooncentered coordinates allows consideration of the path of the Sun in the sky as seen from the Moon. This enables local sun angles to be calculated in a horizontal coordinate system, just as they are for determining Sun position on the Earth. Thus, local Sun angles may be readily determined for a given time at a given point on the lunar surface, and trigonometric relationships can be used in conjunction with accurate surface elevation maps to determine whether that point is in shadow. Application of this technique can provide characterization of shadowing over any desired EVA path or exploration area of interest over time, making it possible to include thermal and power analysis of potential surface assets in a model." @default.
- W2275243406 created "2016-06-24" @default.
- W2275243406 creator A5025898649 @default.
- W2275243406 creator A5057529465 @default.
- W2275243406 date "2014-07-13" @default.
- W2275243406 modified "2023-09-23" @default.
- W2275243406 title "Determination of Shadowing On the Lunar Surface Using a Lunar-Celestial Equatorial Coordinate System" @default.
- W2275243406 cites W1982776101 @default.
- W2275243406 cites W1989038475 @default.
- W2275243406 cites W1995424719 @default.
- W2275243406 cites W2003338777 @default.
- W2275243406 cites W2130370638 @default.
- W2275243406 cites W2153221778 @default.
- W2275243406 cites W2506570101 @default.
- W2275243406 cites W3120173614 @default.
- W2275243406 hasPublicationYear "2014" @default.
- W2275243406 type Work @default.
- W2275243406 sameAs 2275243406 @default.
- W2275243406 citedByCount "1" @default.
- W2275243406 countsByYear W22752434062016 @default.
- W2275243406 crossrefType "journal-article" @default.
- W2275243406 hasAuthorship W2275243406A5025898649 @default.
- W2275243406 hasAuthorship W2275243406A5057529465 @default.
- W2275243406 hasConcept C10138342 @default.
- W2275243406 hasConcept C121332964 @default.
- W2275243406 hasConcept C127313418 @default.
- W2275243406 hasConcept C1276947 @default.
- W2275243406 hasConcept C13280743 @default.
- W2275243406 hasConcept C152067771 @default.
- W2275243406 hasConcept C161840515 @default.
- W2275243406 hasConcept C162324750 @default.
- W2275243406 hasConcept C198082294 @default.
- W2275243406 hasConcept C205649164 @default.
- W2275243406 hasConcept C2524010 @default.
- W2275243406 hasConcept C2776799497 @default.
- W2275243406 hasConcept C2779821442 @default.
- W2275243406 hasConcept C31972630 @default.
- W2275243406 hasConcept C33923547 @default.
- W2275243406 hasConcept C41008148 @default.
- W2275243406 hasConcept C539450922 @default.
- W2275243406 hasConcept C58640448 @default.
- W2275243406 hasConcept C62649853 @default.
- W2275243406 hasConcept C73329638 @default.
- W2275243406 hasConcept C80551277 @default.
- W2275243406 hasConcept C86803240 @default.
- W2275243406 hasConcept C87355193 @default.
- W2275243406 hasConcept C90856448 @default.
- W2275243406 hasConceptScore W2275243406C10138342 @default.
- W2275243406 hasConceptScore W2275243406C121332964 @default.
- W2275243406 hasConceptScore W2275243406C127313418 @default.
- W2275243406 hasConceptScore W2275243406C1276947 @default.
- W2275243406 hasConceptScore W2275243406C13280743 @default.
- W2275243406 hasConceptScore W2275243406C152067771 @default.
- W2275243406 hasConceptScore W2275243406C161840515 @default.
- W2275243406 hasConceptScore W2275243406C162324750 @default.
- W2275243406 hasConceptScore W2275243406C198082294 @default.
- W2275243406 hasConceptScore W2275243406C205649164 @default.
- W2275243406 hasConceptScore W2275243406C2524010 @default.
- W2275243406 hasConceptScore W2275243406C2776799497 @default.
- W2275243406 hasConceptScore W2275243406C2779821442 @default.
- W2275243406 hasConceptScore W2275243406C31972630 @default.
- W2275243406 hasConceptScore W2275243406C33923547 @default.
- W2275243406 hasConceptScore W2275243406C41008148 @default.
- W2275243406 hasConceptScore W2275243406C539450922 @default.
- W2275243406 hasConceptScore W2275243406C58640448 @default.
- W2275243406 hasConceptScore W2275243406C62649853 @default.
- W2275243406 hasConceptScore W2275243406C73329638 @default.
- W2275243406 hasConceptScore W2275243406C80551277 @default.
- W2275243406 hasConceptScore W2275243406C86803240 @default.
- W2275243406 hasConceptScore W2275243406C87355193 @default.
- W2275243406 hasConceptScore W2275243406C90856448 @default.
- W2275243406 hasLocation W22752434061 @default.
- W2275243406 hasOpenAccess W2275243406 @default.
- W2275243406 hasPrimaryLocation W22752434061 @default.
- W2275243406 hasRelatedWork W1679570153 @default.
- W2275243406 hasRelatedWork W1840003730 @default.
- W2275243406 hasRelatedWork W2018346315 @default.
- W2275243406 hasRelatedWork W2189180114 @default.
- W2275243406 hasRelatedWork W2198102325 @default.
- W2275243406 hasRelatedWork W2588664189 @default.
- W2275243406 hasRelatedWork W2767117970 @default.
- W2275243406 hasRelatedWork W2801002470 @default.
- W2275243406 hasRelatedWork W2904617801 @default.
- W2275243406 hasRelatedWork W2997923056 @default.
- W2275243406 hasRelatedWork W3009108611 @default.
- W2275243406 hasRelatedWork W3027311388 @default.
- W2275243406 hasRelatedWork W853368672 @default.
- W2275243406 hasRelatedWork W855298001 @default.
- W2275243406 hasRelatedWork W2088291933 @default.
- W2275243406 hasRelatedWork W2152628715 @default.
- W2275243406 hasRelatedWork W2853198841 @default.
- W2275243406 hasRelatedWork W2866803515 @default.
- W2275243406 hasRelatedWork W2872372874 @default.
- W2275243406 hasRelatedWork W3089434806 @default.
- W2275243406 isParatext "false" @default.
- W2275243406 isRetracted "false" @default.
- W2275243406 magId "2275243406" @default.
- W2275243406 workType "article" @default.