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HST Science Exposures

Contents

Table name:   SCIENCE
Records:      Dynamic

Description:

This screen accesses a special CADC-created table which contains a summary of the scientifically interesting observations in the HST database. The purpose is to create a single screen which can be used to search the archive efficiently. This table is unique to the CADC and the ST-ECF.

Fields:

Name		Type	Meaning

proposid      I   The PEPSI proposal number.
ra_targ       D   The right ascension of the target. This is 
                  required both in the FIXTARG and EXP relation 
                  because the actual target may differ with the 
                  proposed target.
dec_targ      D   The declination of the target. This is required
                  both in the FIXTARG and EXP relation because the
                  actual target may differ with the proposed target.
dataset_name  A   The dataset name (IPPPSSOOT) for this observation.
targname      A   The target(object) name.
exptime       D   The exposure time in seconds. This is not 
                  redundant with respect to the next two fields. 
                  The exposure duration does not include dead time
                  for instrument set up, etc; the difference 
                  between the end and start times reflects the 
                  dead time for instrument set up.
sci_category  A   Science category. Can be any combination
                  of one or two of the following:

          Abbr.   Description
          AUG     Augmentation time proposal
          CAL     Instrument calibration|proposal
          COS     COSTAR
          DD      Director's discretionary
          ENG     Engineering observation
          ERO     Early Release Observation|(limited proprietary)
          GO      General Observer proposal
          GST     Ground System Test proposal
          GTO     Garanteed Time Observer
          OBS     ??
          OPD     ??
          OTA     Optical Telescope Assembly
          OV      Orbital verification (now public)
          RPT     Repetition of a previous proposal
          SAT     Science Assesment proposal (now public)
          SMC     ??? 
          SV      Science Verification (limited proprietary period)
          WF2     2d generation of the WFPC

expstart      D   The start time of the exposure.
v3_angle      D   Position of the v3 axis of the telescope.
ra_v1axis     D   The right ascension of the v1 axis of the telescope.
dec_v1axis    D   The declination of the v1 axis of the telescope.
pi_lname      A   Last name of the Principal Investigator
quality       A   Quality value for the exposure as
                  determined (rather arbitrarily) by the
                  ground crew. The possible values are:
                  OK, POOR, NOISY, UNKNOWN, NO-COUNTS, SATURATED,
                  BLANK-IMAGE, WEAK-COUNTS WEAK-SIGNAL, DATA-DROPOUTS,
                  NOT-DISPLAYED
release_date  D   The date on which the data becomes public
fgslock       A   Fine Guidance Sensors locking mode.
instrume      A   Instrument name (WFPC,FOC,FOS,HRS)
tarkey        A   List of keywords describing the target
targcat       A   Scientific category for the target
proposal_title A   Title of the Proposal
qualcom       A   Data quality comments
tardescr      A   Target description
camera        A   Camera used for WF/PC observation (WF or PC)
mode          A   WF/PC mode: FULL (Full integration) or AREA (Area 
                  integration)
smmmode       A   FOC spectroscopic mode? (INBEAM or NOTUSED)
optcrly       A   FOC optical Relay (F48 or F96)
shtmode       A   FOC shutter mode (INBEAM or NOTUSED)
ledcolor      A   FOC LED Color (a color, blank, NONE or ERROR)
pxformt       A   FOC image format (NORM or ZOOM)
aperobj       A   Aperture
filter        A   Filters used in exposure. This is a string which
                  includes all of the filters in the optical path.
                  In searching for a particular filter a string
                  like *F502N* should be used
minwave       F   Minimum wavelength of spectral coverage
maxwave       F   Maximum wavelength of spectral coverage
aper_id       A   Aperture ID (FOS)
polar_id      A   Polarizer ID (FOS)
detector      A   Detector in use (FOS: AMBER or BLUE; HRS: 1 or 2)
obsmode       A   Observation mode
grating       A   Grating name