ELEMS1

                                                                                
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
ELEMS1              8986390.0780        8283790.5802        -1502498.2249       
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
                                                                                
COLUMNS FORMAT         DESCRIPTION                         DEFAULT VALUE & UNITS
                                                                                
1-6     A6        ELEMS1 - Introduces the first three                           
                  components of the orbital elements for                        
                  the S/C.                                                      
                                                                                
7       I1        Form of elements                               0              
                    0 - Either Cartesian or Keplerian                           
                    1 - Cartesian                                               
                    2 - Keplerian                                               
                    3 - Non-singular Keplerian                                  
                    5 - Cartesian non-elliptic                                  
                    6 - Keplerian non-elliptic                                  
                                                                                
8       I1        Coordinate system of input elements NOTE(2)   0              

                                                                                
11-14   I4        Central body for input  elements.            300              
                                                                                
                    0100 - Mercury                                              
                    0200 - Venus                                                
                    0300 - Earth                                                
                    0301 - Earth's moon                                         
                    0400 - Mars                                                 
                    0500 - Jupiter                                              
                    0600 - Saturn                                               
                    0700 - Uranus                                               
                    0800 - Neptune                                              
                    0900 - Pluto                                                
                    9999 - Sun
DEC 1999

9912.0

ARC SET - MANDATORY CARDS

ELEMS1 (cont)

                                                                                
                                                                                
COLUMNS FORMAT         DESCRIPTION                         DEFAULT VALUE & UNITS
                                                                                
21-40   D20.14    Element 1   see Table on next page             0    M         
                                                                                
41-60   D20.14    Element 2   see Table on next page             0    M or none 
                                                                                
61-80   D20.14    Element 3   see Table on next page             0    M, DEG    
                                                                      or none   
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
UNITS:  KM =Kilometers; M  =Meters    ; S  =Seconds    ; Kg =Kilograms          
        DEG=Degrees   ; RAD=Radians   ; AS =Arc seconds; MAS=Milli-arc seconds  
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
NOTE: [1] GEODYN II expects the elements to be refered to the IAU system        
          regardless of which planet the S/C is orbiting about.                 

NOTE: [2] The coordinate system of input elements should be the same system     
          as specified on column 11 of the REFSYS option.


Shelley Rowton
1999-11-30