PDS_VERSION_ID                   = PDS3
RECORD_TYPE                      = STREAM
LABEL_REVISION_NOTE              = "2004-08-02: Information loaded
                                    into OLAF by Carol Neese;
                                    2005-07-20: Instrument cat
                                    augmented with band widths and
                                    references to publications."

OBJECT                           = INSTRUMENT
 INSTRUMENT_ID                   = "SPIRIT3"
 INSTRUMENT_HOST_ID              = "MSX"

 OBJECT                          = INSTRUMENT_INFORMATION
  INSTRUMENT_NAME                = "SPATIAL INFRARED IMAGING TELESCOPE"
  INSTRUMENT_TYPE                = "N/A"
  INSTRUMENT_DESC                = "


  Instrument Overview
  ===================
    The Spatial Infrared Imaging Telescope (SPIRIT III) was a 33cm
    clear-aperture off-axis telecope that contained two focal-plane
    instruments:  a multispectral high spatial resolution (18')
    radiometer and a six-channel high spectral resolution (R~20cm-1),
    2.5 to 28 micron Fourier transform spectrometer.  The radiometer
    had four broad spectral bands (A, C, D, and E) and two narrow
    bands (B1 and B2).  Detector pixels were square with a pixel
    scale of 18.3 arcsec/pixel.

Band:  Ctrl. Wavelength:  50% peak int.:   Array Size:   NER*:  FOV**:
            (microns)       (microns)

A          8.28            6.8  - 10.8      8 x 192     3.0E-11   1.06
B1         4.29            4.22 -  4.36     2 x 76      1.0E-09   1.4
B2         4.35            4.24 -  4.45     2 x 76      9.0E-10   1.4
C         12.13           11.1  - 13.2      4 x 192     2.0E-10   1.17
D         14.65           13.5  - 15.9      4 x 192     1.0E-10   1.13
E         21.34           18.2  - 25.1      2 x 192     3.0E-10   1.26

    * Noise Equivalent Radiance in W/cm^2/sr
    ** Effective FOV (x 1.0E-08 sr)


    SPIRIT III flew on the Midcourse Space Experiment (MSX) satellite
    which was launched in April 1996, and operated until February 1997
    when it ran out of cryogen.

    Further details about the SPIRIT III instrument may be found in the
    following papers:

    Mill, J.D, R.R. O'Neil, S. Price, G.J. Romick, O.M. Uy, E.M.
    Gaposchkin, G.C. Light, W.W. Moore, Jr., T.L. Murdock, and A.T.
    Stair, Jr., Midcourse Space Experiment: Introduction to the
    spacecraft, instruments, and scientific objectives. Journal of
    Spacecraft and Rockets 31, 900-907, 1994. [MILLETAL1994]

    Price, S.D., M.P. Egan, S.J. Carey, D.R. Mizuno, and T.A. Kuchar,
    Midcourse Space Experiment Survey of the Galactic Plane, Astron. J.
    121, 2819-2842, 2001.  [PRICEETAL2001]

    Anon., SPIRIT III Infrared Sensor Ground Calibration Report,
    Volumes 1 and 2, Utah State University Space Dynamics Lab, Logan,
    UT, TP-010200-0001-F01.00-941015, October 1994. [ANONYMOUS1994]"

 END_OBJECT                        = INSTRUMENT_INFORMATION

 OBJECT                            = INSTRUMENT_REFERENCE_INFO
  REFERENCE_KEY_ID                 = "MILLETAL1994"
 END_OBJECT                        = INSTRUMENT_REFERENCE_INFO

END_OBJECT                         = INSTRUMENT
END