WFPC2 products retrieved since September 3 from DADS in waivered FITS format may not run through multidrizzle. We are working on the solution

HST Duplication Checking

Use this page to check for duplications with your HST proposal.

Enter a proposal ID or your last name:

This form will check for possible duplications with your proposal. An observation is reported as a possible duplication if:

• it comes from a proposal other than the one you're checking;
• it is within 5 arcminutes of one of your observations;
• it uses the same instrument as your observation;
• it has been or will be executed in proposal cycles 7 through 16.

Please note: This interface does not yet contain the cycle 17 GTO reserved targets. For Cycle 17 GTO and ERS targets, please see the following pages:
The COS GTO Science Programs
The WFC3 Early Release Science Program

You may do more complex duplication-checking using the HST Duplication Checking form, or with the Proposed and Archived Exposures Catalog.

There is also a help page for these forms.