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PIMMS (Portable Interactive Multi-Mission Simulator) was developed at NASA-GSFC by Dr. K. Mukai. [We thank Dr. Mukai for making some changes to the code for Chandra.] PIMMS allows the user to convert between source fluxes and count rates for different mission/instrument combinations.
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Colden is an interactive program to evaluate the Galactic neutral hydrogen column density at a given direction on the sky. Colden accesses two databases: the Bell survey (Stark et al 1992 ApJS 79, 77) and the Dickey & Lockman 1990 (ARA&A, 28, p.215) compilation of Bell and other surveys for all-sky coverage.
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Precess is an interactive astronomical coordinate conversion program. It allows precession of equatorial coordinates and conversion between equatorial, ecliptic, galactic, and supergalactic coordinates.
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Dates is an interactive calendar and time conversion tool.
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Resource Cost Calculator is a tool to help determine the resource cost for a given target and observational set up (including required chips and various constraints).
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Star Checker is a web-based tool which allows a user to determine roll angles and dates that have suitable fields for guide star acquisition given a target and offset configuration.
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