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As of April 13, 2015 the archive is now using the STScI Single Sign-On (SSO) identity manager. To check on your account click here. For more information about how accounts were transitioned click here.

HST History Search

Dataset or Association name
Observations start from hours before to hours after

This form allows you to quickly see what observations surround a given dataset. The search is done for dataset with the same instrument configuration as the given instrument. The original dataset is included in the output, and the rows are sorted by start time in descending order.

To use it, enter the name of an HST dataset (case is not important), select how many hours back you want the start times to occur, and optionally, how many hours forward, and click the Search button to see the results, or the Form button to go to the MAST HST search form, where you can apply more search qualifications.