SCR 3-1037: Spectral Qube Labels/Data Structure
Problem Summary: Instruments classified as imaging spectrometers are increasingly being used in planetary missions. Data from these instruments are naturally represented in a three-dimensional structure consisting of an image plane, with spectra associated with each pixel in the image. The ISIS group at the USGS has designed a data structure, the ISIS Cube, to represent this kind of data. But more importantly, the group has developed a tool suite, referred to collectively as ISIS software, which is capable of viewing and processing the ISIS Cube.
Beginning with Mars Odyssey, a number of planetary missions have requested a new object designed specifically for imaging spectrometer data which would enable compatibility with ISIS software. Two issues have driven development of the new SPECTRAL_QUBE object within PDS: (1) known problems with the existing PDS QUBE specification, and (2) the degree to which SPECTRAL_QUBE could be made more general and still maintain compatibility with the ISIS Cube structure. There were also considerations based on the fact that instrument teams were already generating or designing SPECTRAL_QUBE products, based on the emerging standard. This SPECTRAL_QUBE is an improvement over the existing QUBE object, both in rigor and in compatibility with current PDS and ISIS standards and represents a "best fit", given the design constraints.
Working group: P. Garcia (lead) E. Rye, S. Slavney, R. Alanis, J. Zender, E. Grayzeck, L. Huber, R. Joyner, S. Hughes, C. Isbell
Originator: P. Garcia
Standards Change Request:
|14||2004-06-14||P. Garcia||Actually version 14b.|
The Management Council voted to APPROVE the SCR with a vote of 10-0-2. The vote took place during a telecon on June 21, 2004 on version 14b of the SCR.