December 29, 2006

Hubble Space Telescope SPKs prepared by Ed Wright for Robert Jacobson.

TLE data obtained from Space Track facility, http://www.space-track.org, in 
three parts covering the dates:

1990-01-01 to 1996-01-01
1996-01-01 to 2002-01-01
2002-01-01 to 2006-12-31

The mkspk utility processed these data sets to create the SPK files:

1990-01-01_1996-01-01.bsp
1996-01-01_2002-01-01.bsp
2002-01-01_2006-12-31.bsp

An application of the bspidmod utility changed the segment body ID in 
each SPK to -48 (NAIF ID for HST) from -120580 (default from NORAD ID).

Use of spkmerge created a single SPK, 1990-01-01_2006-12-31.bsp, from
the three previously listed SPKs. 

Ed Wright
ed.wright@jpl.naasa.gov
1-818-354-0371