Simulation and Calculation of the APEX Attitude

reportActive / Technical Report | Accession Number: ADA258716 | Open PDF

Abstract:

A simulation of the APEX attitude is carried out for purposes of development and testing of attitude computation algorithms and for assessment of the accuracy of post-flight attitude determination. It is found that reasonably tractable algorithms give adequate accuracy for determination of attitude control in the vehicle. Sun normal angle will be known to a high precision during sunlit operations. The roll axis in sunlight and the three axes during eclipse will be somewhat less precise, depending mainly on the degree of magnetic contamination. However, it is estimated that these quantities will be of sufficient accuracy as well.

Author(s):
Mcneil, W. J.
Author Organization(s):
RADEX INC BEDFORD MA
Descriptive Note:
Scientific rept. no. 11
Supplementary Note:
DOI: 10.21236/ADA258716
Pagination:
0053

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
RXR-92072, PL-TR-92-2209
Contract/Grant Number(s):
F19628-89-C-0068
Task Number(s):
05
Project Number(s):
7659
Monitor Series:
TR-92-2209, AD-E201 294, PL/HANSCOM
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_5.3_Planning; JCA_1_Force Support; JCA_6_Net Centric; JCA_5.2.2_Develop Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_1.2.7_Experimentation; JCA_1.3_Human Capital Management; JCA_1.3.2_Personnel Management; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_6.4.1_Secure Information Exchange; JCA_8_Building Partnerships
Modernization Areas:
Space
Communities of Interest:
Space
Descriptor(s):
*SATELLITE ATTITUDE, *SCIENTIFIC SATELLITES, COMPUTER PROGRAMS, ALGORITHMS, COMPUTERIZED SIMULATION, ECLIPSES, SUN, UNMANNED SPACECRAFT, SIMULATION, ATTITUDE CONTROL SYSTEMS
Field(s)/Group(s):
Astronautics
Keyword(s):
APEX(ADVANCED PHOTOVOLTAIC AND ELECTRONIC EXPERIMENT), ATTITUDE SIMULATION, ATTITUDE DETERMINATION, APEX ATTITUDE, SBI1, FISCAL YEAR 1993, PE62101F, WUPL765905AB
Report Date:
1992 Jul 29