SCBODY

DEC 1999

9912.0

GLOBAL SET

                                                                                
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
SCBODY                                                                          
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
                                                                                
COLUMNS FORMAT         DESCRIPTION                         DEFAULT VALUE & UNITS
                                                                                
1-6     A6     SCBODY - Allows the user to overwrite
               values and request adjustment of physical
               parameters of a celestial body featured
               in the EPHEM2 global option. (Supplementary
               Planetary Ephemeris)
                                                                                
7       I1     Gravity model initialization indicator.
               = 0  Gravitational coefficients are 
                    initialized from the gravity model
                    file.

               The option to modify the coefficients
               using GCOEF, GCOEFC, and GCOEFS cards
               is not yet applicable.
                                                                                
               > 0  (See PLANET card) Not Available yet.

8       I1     > 0  Indicates that this body should be 
                    excluded from the force model
                    calculation.

9-10    I2     Celestial body sequence in the
               supplementary planetary sequence.

11-17   I7     Celestial body ID.
               
18-20   I3     Max degree of coefficient to be used in the 
               gravitational model.
                                                                                
21-23   I2     Max degree of coefficient to be used in the 
               gravitational model.

24       I1    Indicator of the contents of the real
               fields (col 25-80).
               = 0  Columns 25-80 contains the values of
                    GM, A, 1/fp, 1/fe

               = 1  Columns 25-80 contains the sigmas of
                    GM, A, 1/fp, 1/fe

25-44   D20.8  Universal gravitational constant times the
               mass of the body (GM) or sigma value if 
               column 7 = 1

45-59   D15.3  Semi-major axis of the body (A) or sigma 
               value if column 7 = 1

25-44   D20.8  Inverse of the body's polar flattening (1/fp)
               or sigma value if column 7 = 1

25-44   D20.8  Inverse of the body's equatorial flattening
               (1/fp) or sigma value if column 7 = 1



IF CARD OMITTED:  Values of planetary physical parameters
                  from the supplementary planetary ephemeris
                  will be used.
                                                                                
      



Shelley Rowton
1998-09-10