| Description: The detailed information used for targeting HST. This includes information about standard targets such as planets, satellites, and larger asteroids. It can also include information used to determine offsets from the center of these bodies. Here are some sample values of this attribute: STD = JUPITER STD = EUROPA TYPE=TORUS, LONG=90, LAT=0, RAD-3.98E05 They are obtained from the FITS header of an observation's associated _shf.fits or _spt.fits file. They are the values of FITS keywords MT_LV_1, MT_LV_2, etc. Consult with HST documentation for detailed interpretations. If no MT_LV keywords appear in the FITS header, this attribute should be nil with nilReason = "inapplicable". |