Publication Date:
2019-07-13
Description:
Accurate International Space Station (ISS) power prediction requires the quantification of solar array shadowing. Prior papers have discussed the NASA Glenn Research Center (GRC) ISS power system tool SPACE (System Power Analysis for Capability Evaluation) and its integrated shadowing algorithms. On-orbit telemetry has become available that permits the correlation of theoretical shadowing predictions with actual data. This paper documents the comparison of a shadowing metric (total solar array current) as derived from SPACE predictions and on-orbit flight telemetry data for representative significant shadowing cases. Images from flight video recordings and the SPACE computer program graphical output are used to illustrate the comparison. The accuracy of the SPACE shadowing capability is demonstrated for the cases examined.
Keywords:
Spacecraft Propulsion and Power
Type:
NASA/TM-2002-211715
,
E-13467
,
IECEC-2002-20113
,
NAS 1.15:211715
,
37th Intersociety Energy Conversion Engineering Conference; Jul 28, 2002 - Aug 02, 2002; Washington, DC; United States
Format:
application/pdf
