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HSTAEC - HST Archived Exposures Catalog

HEASARC
Archive

Overview

This is the Hubble Space Telescope (HST) Archived Exposures Catalog (AEC) as obtained from the Space Telescope Science Institute (STScI) Archive, where it was created from a compilation of their Archive and Proposal databases. This database provides a summary of all completed HST observations, including both solar system and fixed (i.e., cosmic) targets. Exposures are included here after they have been archived at STScI. Notice that solar system objects ahould be searched for by name, not by position. Much more information can be obtained about each exposure, and the data themselves can be retrieved using STScI's Multimission Archive (the URL is http://archive.stsci.edu/hst/) or STScI's Archive Web Interface (the URL is http://archive.stsci.edu/hst/search.php). This HEASARC version of the HSTAEC is updated on a monthly basis, based on data files obtained from the STScI Web site each month.

Note that when the HEASARC ingested this catalog, (i) a number of entries were found with missing or null positional co-ordinates, i.e., RA and Dec values, which we have set to be at (RA, Dec) = (0,0) in equinox J2000, and (ii) 186 entries were found with clearly erroneous observation dates, e.g., Nov 17 1858, which the HEASARC has changed to null values.


References

The original data files can be downloaded from the STScI Hubble Data Archive (HDA) at http://archive.stsci.edu/hst/aec.html.

Provenance

This database table is recreated by the HEASARC on a monthly basis using the latest AEC data files obtained from the STScI Hubble Data Archive (HDA) at http://archive.stsci.edu/hst/aec.html.

Data Products

The single data product associated with the entries in this table is a GIF preview file available at the Space Telescope Science Institute HST Archive for which the HEASARC provides a link.

Parameters

Name
The name of the target.

RA
The right ascension of the target in the default equinox.

Dec
The declination of the target in the default equinox.

LII
The galactic longitude of the target.

BII
The galactic latitude of the target.

V3
The V3 position angle during the observation, in degrees. To compute the u3 roll angle from v3, simply add 180 degrees to it.

FOV
The field of view (FOV) configuration.

Configuration
The instrument configuration.

Mode
The instrument operating mode.

Aperture
The apertures used. Multiple apertures are delimited by semicolons.

Spectral_Element
The spectral elements used. Multiple elements are delimited by semicolons.

Wavelength
The "central" wavelength of the observation, in Angstroms (AA).

C_Flag
A flag indicating whether corrective optics were used (i.e., COSTAR, WFPC2), where 'T' means that they were and 'F' means that they were not.

Exposure_Time
The length of the exposure time, in seconds.

Proposal_ID
The proposal ID.

Dataset_Name
The dataset name: this uniquely identifies the data for a given exposure.

Observation_Date
The date on which the observation was made. (Note: There were 186 erroneous entrees of "Nov 17 1858 12:00AM" for this parameter. These erroneous dates were changed to null values).

Release_Date
The date on which the observation becomes/became public.


Contact Person

Questions regarding the HSTAEC database table can be addressed to the HEASARC User Hotline.

Page Author: Browse Software Development Team
Last Modified: 12-Jan-2007