POST_OBS: Observations carried out to date

Screen name:   post-obs
Records:       Dynamic

Description

This screen contains all important information about exposures taken by the Hubble Space Telescope. It relates the information contained in the exposure table with the ones from the original proposal. This screen is probably the first one to look at for information about HST exposures.

Fields


Name		Table	Type	Meaning

proposal      exp    I  The proposal_id number. 
pi_lname      prop   A  Last name of the Principal investigator
sci_cat       prop   A  science category. Can be any combination
                        of one or two of the following:

    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

instr       exp    A  Instrument name
fgslock     exp    A	 Fine Guidance Sensors locking mode. 
                      Can be either COARSE, FINE, GYROS
pub_Xcept   dsname I  Flag. Set to one if the dataset is 
                      having an exceptional release date. 
                      This date is given by the field pub_date
pub_date    dsname D  Date after which the dataset will 
                      become available for the general public.
ra_obs      exp    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_obs     exp    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.
proposal    prop   A  Proposal title
target      exp    A  The target name. 
targcat     obs    A  Target category. The actual target may 
                      differ with the proposed target.
exp_len     exp    D  The exposure time in seconds. This is 
                      not redundant with respect to the next
                      two fields. The exposure duration should
                      not include (in principle) dead time for
                      instrument set up, etc; the difference
                      dead time for instrument set up.
start       exp    D  The start time of the exposure.
stop        exp    D  The stop time of the exposure.
moving?     exp    A  Flag indicating a moving target. 'T' 
                      if the telescope was moving to follow 
                      the target. 'F' if the telescope was 
                      not moving with respect to the stars.
dataset_name exp   A  The data set name corresponding to this exposure.
quality     pdq    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
qual1       pdq    A  Quality comment 1
qual2       pdq    A  Quality comment 2

POST_OBS: Observations carried out to date

Contents

Description

Fields