Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/hst/fgs/design/documents/instrumenthandbook/appendix_targacq2.html
Дата изменения: Unknown
Дата индексирования: Tue Apr 12 05:38:13 2016
Кодировка:
Поисковые слова: europa
Fine Guidance Sensor Instrument Handbook
FGS Instrument Handbook for Cycle 24
help@stsci.edu
Table of Contents Previous Next Index PDF


Fine Guidance Sensor Instrument Handbook for Cycle 24 > Appendix A: Target Acquisitionand Tracking > A.1 FGS Control
A.1 FGS Control
Two different computers interface with and control an FGS at various times. The first is the 486, which controls the HST spacecraft and its pointing control system. The second is the Fine Guidance Electronics (FGE) microprocessor associated with each FGS. Both the 486 and the FGEs control the FGSs while they are guiding HST. During astrometric science observations, control is shared by the two computers: the FGE operates the FGS during Position mode, while the 486 operates the FGS during Transfer mode scans.
Fine Guidance Sensor Instrument Handbook for Cycle 24 > Appendix A: Target Acquisitionand Tracking > A.1 FGS Control

Table of Contents Previous Next Index PDF