An analysis of the Hubble Space Telescope fine guidance sensor Fine Lock mode

Details An analysis of the Hubble Space Telescope fine guidance sensor Fine Lock mode An analysis of the Hubble Space Telescope fine guidance sensor Fine Lock mode

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104..452t&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, no. 676, June 1992, p. 452-466. Research supported

Statistics

Computation

1

Control Systems Design, Hubble Space Telescope, Satellite Attitude Control, Spacecraft Guidance, Tracking (Position), Aberration, Flight Tests, Onboard Data Processing, Reference Stars, Remote Control, Transfer Functions

Scientific paper

There are two guiding modes of the Hubble Space Telescope used for the acquisition of astronomical data by one of its six scientific instruments. The more precise one is called Fine Lock. Command and control problems in the on-board electronics, compounded by the aberrations in the main optics, has limited routinely successful Fine Lock to brighter stars, V less than 13.0 mag, instead of fulfilling its prelaunch goal of V = 14.5 mag. Consequently, the less precise guiding mode of Coarse Track (about 25 milliarcsecond in practice) has to be used fairly frequently. Indeed, almost half of the celestial hemisphere has stars too faint to support guidance in the Fine Lock mode. Hence, some of the scientific observations to have been made with the Hubble Space Telescope will be compromised. In this paper a report on the only realistic or extensive simulations of the Fine Lock guidance mode is presented. The theoretical analysis underlying the Monte Carlo experiments and the numerical computations show that the control electronics have significant limitations and how to adjust the various control parameters in an attempt to extend Fine Lock guiding performance back to V - 14.0 mag.

Affiliated with

Also associated with

No associations

Rating

An analysis of the Hubble Space Telescope fine guidance sensor Fine Lock mode does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An analysis of the Hubble Space Telescope fine guidance sensor Fine Lock mode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An analysis of the Hubble Space Telescope fine guidance sensor Fine Lock mode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1523121