AAS 197, January 2001
Session 12. Hubble Space Telescope: Instruments and Data Reduction
Display, Monday, January 8, 2001, 9:30am-7:00pm, Exhibit Hall

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[12.06] NICMOS Photometric Calibration

M. Sosey, M. Dickinson (Space Telescope Science Institute), M. Rieke (Steward Obs., U. of Arizona)

We have undertaken a complete re-analysis of all NICMOS standard star photometric calibration observations completed during the on-orbit lifetime of the instrument, in order to improve the determination of the photometric zeropoints. New aperture corrections for all camera+filter combinations have been computed using version 5.0 of the TinyTim synthetic PSF software package. We present the results of this analysis, including the newly determined photometric zeropoint keywords, along with a discussion of the stability of these zeropoints with time and temperature.

The author(s) of this abstract have provided an email address for comments about the abstract: sosey@stsci.edu

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