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.