Instrument Information
IDENTIFIER urn:nasa:pds:context:instrument:go.nims::1.2
NAME Near Infrared Mapping Spectrometer for GO
TYPE
DESCRIPTION The Galileo Near Infrared Mapping Spectrometer (NIMS) represents a sophisticated imaging spectrometer designed for deep-space exploration, particularly for measuring the composition of the Jovian atmosphere and the surfaces of the Galilean satellites. Operating within the 0.7 to 5.2 micron spectral range, NIMS achieves high spectral resolution of 0.0125 microns below 1 micron and 0.0250 microns above, utilizing a dual-blaze grating and 17 detectors that facilitate near-simultaneous spectral measurements. The instrument is capable of efficiently conducting spectral acquisitions through a combination of spacecraft motion and a secondary mirror that enhances its field of view. Calibration processes, both flight and ground-based, incorporate diverse methodologies, including radiometric and photometric assessments, as well as spectral and spatial response calibrations. Operational parameters dictate precise coordination of target motion, limiting exposure to thermal influences and solar glare to protect the sensitivity of the detectors. Data acquisition is streamlined through various operational modes, yielding adaptable data rates contingent upon the specific mission requirements. NIMS's dual design incorporates a sophisticated optical configuration paired with advanced electronic processing capabilities, underscoring its integral role in advancing our understanding of planetary atmospheres and surfaces through its robust spectroscopic capabilities.
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NAIF INSTRUMENT IDENTIFIER
SERIAL NUMBER not applicable
REFERENCES Carlson, R.W., P.R. Weissman, W.D. Smythe, J.C. Mahoney, and the NIMS Science and Engineering Teams, Near-Infrared Mapping Spectrometer Experiment on Galileo, Space Science Reviews 60: 457-502, 1992.