PDS_VERSION_ID               = "PDS3"

RECORD_TYPE                  = FIXED_LENGTH
RECORD_BYTES                 = 80
FILE_RECORDS                 = 2553
^TABLE                       = "GLGM2SH.TAB"

SPACECRAFT_NAME              = "CLEMENTINE 1"
TARGET_NAME                  = "MOON"
INSTRUMENT_NAME              = "RADIO SCIENCE SUBSYSTEM"
DATA_SET_ID                  = "CLEM1-L-RSS-5-GRAVITY-V1.0"
PRODUCT_ID                   = "GLGM2-SH"
PRODUCT_RELEASE_DATE         = 1996-01-01
DESCRIPTION                  = "This file contains coefficients
for a spherical harmonic model of the Moon's gravity field.  The
Clementine gravity model is known as the Goddard Lunar Gravity
Model 2 (GLGM-2).  This is a 70th-degree and -order model.  The
gravity solution is based on Doppler tracking of Lunar Orbiters 1
to 5, the Apollo-15 and Apollo-16 subsatellites, and the
Clementine spacecraft.  The data were processed in 392 arcs, and
708,854 observations contributed to this solution, of which
361,794 were provided by Clementine.  The solution was calibrated
by the use of subset solutions, as described in Lerch (Bulletin
Geodesique, v. 65, p. 44-52, 1991), in order to obtain  a more
realistic estimate of the gravity field error.  The planetary
gravitational constant, or GM for this solution is 4902.80295 +/-
0.00224 km^3/sec^2, and the reference equatorial radius is
1738.0 km."

OBJECT                   = TABLE
  ROWS                       = 2553
  COLUMNS                    = 6
  ROW_BYTES                  = 80 
  INTERCHANGE_FORMAT         = ASCII
  DESCRIPTION                = "The GLGM-2 table contains the
  coefficients for the spherical harmonic model.  Each row in
  the table contains the degree index m, the order index n, the
  coefficients Cmn and Smn, and the uncertainties in Cmn and Smn.
  The (delimited) data require 77 ASCII characters; these are
  followed by a pad of 1 unspecified ASCII character, an ASCII
  carriage-return, and an ASCII line-feed."

  OBJECT                 = COLUMN
    NAME                     = "COEFFICIENT DEGREE"
    DATA_TYPE                = ASCII_INTEGER
    START_BYTE               = 1
    BYTES                    = 3
    FORMAT                   = "I3"
    UNIT                     = "N/A"
    DESCRIPTION              = "The degree index m of the
    C and S coefficients in this record."
  END_OBJECT             = COLUMN

  OBJECT                 = COLUMN
    NAME                     = "COEFFICIENT ORDER"
    DATA_TYPE                = ASCII_INTEGER
    START_BYTE               = 5
    BYTES                    = 3
    FORMAT                   = "I3"
    UNIT                     = "N/A"
    DESCRIPTION              = "The order index n of the
    C and S coefficients in this record."
  END_OBJECT             = COLUMN

  OBJECT                 = COLUMN
    NAME                     = "C"
    DATA_TYPE                = ASCII_REAL
    START_BYTE               = 9
    BYTES                    = 20
    FORMAT                   = "E20.12"
    UNIT                     = "N/A"
    DESCRIPTION              = "The coefficient Cmn
    for this spherical harmonic model."
  END_OBJECT             = COLUMN

  OBJECT                 = COLUMN
    NAME                     = "S"
    DATA_TYPE                = ASCII_REAL
    START_BYTE               = 30
    BYTES                    = 20
    FORMAT                   = "E20.12"
    UNIT                     = "N/A"
    DESCRIPTION              = "The coefficient Smn
    for this spherical harmonic model."
  END_OBJECT             = COLUMN

  OBJECT                 = COLUMN
    NAME                     = "C UNCERTAINTY"
    DATA_TYPE                = ASCII_REAL
    START_BYTE               = 51
    BYTES                    = 13
    FORMAT                   = "E13.5"
    UNIT                     = "N/A"
    DESCRIPTION              = "The uncertainty in the
    coefficient Cmn for this spherical harmonic model."
  END_OBJECT             = COLUMN

  OBJECT                 = COLUMN
    NAME                     = "S UNCERTAINTY"
    DATA_TYPE                = ASCII_REAL
    START_BYTE               = 65
    BYTES                    = 13
    FORMAT                   = "E13.5"
    UNIT                     = "N/A"
    DESCRIPTION              = "The uncertainty in the
    coefficient Smn for this spherical harmonic model."
  END_OBJECT             = COLUMN

END_OBJECT               = TABLE

END