Dyer M. Lytle

Near-Infrared Camera and Multi-Object Spectrometer 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.). The catalog contains 342 objects in a 49farcs1 × 48farcs4 subfield of the total observed field, 235 of which are considered coincident with objects in the WFPC2 catalog. The 3 σ signal-to-noise ratio level is at an aperture AB magnitude of approximately 28.8 at 1.6 μm. The catalog sources, listed in order of right ascension, are selected to satisfy a limiting signal-to-noise ratio 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 §§ 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.

Mission-critical software development for a distributed and diverse user base

XTour is a distributed software system used to design operating commands for the Visual and Infrared Mapping Spectrometer (VIMS) instrument onboard the Cassini spacecraft. The distributed architecture increases security and accessibility by centralizing access to the large datasets of information required to create instrument commands. Users are able to leverage portable devices to connect to the server and quickly complete their tasks, independent of their location. In this paper we discuss the design and implementation of the XTour software. 12