Nicmos Observations of the Hubble Deep Field: Observations, Data Reduction, and Galaxy Photometry

This paper presents data obtained during the NICMOS Guaranteed Time Observations of a portion of the Hubble Deep Field. The data are in a catalog format similar to the publication of the original WFPC2 Hubble Deep Field Program (Williams et al. 1996). The catalog contains 342 objects in a 49.1 × 48.4 subfield of the total observed field, 235 of which are considered coincident with objects in the WFPC2 catalog. The 3σ signal to noise level is at an aperture AB magnitude of approximately 28.8 at 1.6 microns. The catalog sources, listed in order of right ascension, are selected to satisfy a limiting signal to noise criterion of greater than or equal to 2.5. This introduces a few false detections into the catalog and users should take careful note of the completeness and reliability levels for the catalog discussed in Sections 9 and 10. The catalog also contains a test parameter indicating the results of half catalog tests and the degree of coincidence with the original WFPC2 catalog. Subject headings: cosmology: observation — galaxies: fundamental parameters