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NAIF
SPICE

The Planetary Science Division's
Ancillary Information System

The Navigation and Ancillary Information Facility (NAIF) provides NASA planetary flight projects and NASA funded professional planetary researchers an information system named "SPICE" to assist scientists in planning and interpreting scientific observations from space-based instruments. SPICE is also widely used in engineering tasks associated with planetary missions.

SPICE is focused on solar system geometry (pdf). The SPICE system includes a large suite of software, mostly in the form of subroutines that customers incorporate in their own application programs to read SPICE files and to compute derived observation geometry, such as altitude, latitude/longitude, and lighting angles. SPICE data and software may be used within many popular computing environments. The software is offered in FORTRAN, C, IDL® and MATLAB®.

NAIF serves as the "Navigation Node" of NASA's Planetary Data System, archiving, and providing the science community access to, SPICE data from NASA's planetary exploration missions. Archived SPICE data from a few non-NASA missions is also archived at NAIF.

Announcements
(Most recent at top)

  • NAIF announces a data set sub-setting service, available for SPICE data sets that have been archived within the Planetary Data System (PDS). This service facilitates downloading to and accessing on the user's host a subset of SPICE kernels covering a user-specified time interval. Using this service is a way to avoid downloading an entire SPICE data set that may be very large when only a portion of the data set is needed.

    This service can be accessed via the "subset" links in the "Data Set Subsetter Link" column of the mission table on the "PDS Archive for SPICE Data" page.

  • The next Toolkit release is expected in March, 2010. This release will add some newly supported computing environments and will augment the Geometry Finder subsystem.

The current version of the SPICE Toolkit, Version N63, was released April 17, 2009. To see what's been added, fixed and changed relative to the previous release read the "whats.new" available on this website under the Toolkit link for the language of interest to you, or see this same file in a Toolkit package you have downloaded.

Sign up to receive SPICE announcements at SPICE Announce.

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