Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.3412b&link_type=abstract
American Astronomical Society, DPS meeting #39, #34.12; Bulletin of the American Astronomical Society, Vol. 39, p.481
Astronomy and Astrophysics
Astronomy
Scientific paper
NASA's SPICE ancillary information system deals with observation geometry, time, and events which support the planning for and analysis of science instrument data. Since its development, SPICE has proven to be an invaluable tool to a variety of users involved in mission planning, pre-flight mission evaluation, detailed science observation planning, mission operations engineering functions, science data analysis, data archiving, and education and public outreach. SPICE users now range from scientists and engineers in the Space Science Community to researchers in the Earth Sciences.
A need has been established for a utility program where users of SPICE data files-called kernels-can efficiently choose specific kernel files to download for use in analyzing data returned from instruments onboard planetary exploration spacecraft. This interface would provide the user with a way of selecting kernels, specifically Spacecraft and Planet Kernels (SPK) containing ephemeris data of target bodies from these missions, which satisfy a user's search criteria.
This project chronicles the research and development of a tool that utilizes graphical representations of SPK files to help a user search for, analyze, and select SPK files to download from the SPICE server at JPL directly to the user's own workstation. These graphs would represent the time-coverage and continuity of SPKs, and even further, the epochs, called segments, contained within these SPKs. This utility includes interactive features such as buttons, that when selected can either narrow the scope of the SPK files requested, show a more detailed representation of the selected kernels, or present a summary and/or comments about each kernel. These tools are all intended to streamline the search and selection process of SPK files containing spacecraft parameters important for the scientific interpretation of planetary data.
This work is funded by NASA's Planetary Data System (PDS) College Student Investigator (CSI) program.
Bulalacao John Matthew
County Baltimore
Data System Planetary
Information Facility Ancillary
Jet Propulsion Laboratory NASA
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