----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
VARCOV 0 10 7654321 1.0D+14 1.0D+14 1.0D+14 1.0D+14
VARCOV 0 11 7654321 1.0D+14 1.0D+14
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
COLUMNS FORMAT DESCRIPTION DEFAULT VALUE & UNITS
1-6 A6 VARCOV - A-priori variance/covariance
matrix for the satellite epoch elements.
8 I1 Indicator of coordinate system of 0
adjustment.
0 or 1 - Cartesian.
2 - Keplerian.
3 - Low e and i (Non-singular Keplerian).
9 I1 Indicates whether diagonal or upper 0
triangular part of matrix will be input.
0 - Diagonal elements only.
1 - Upper triangular matrix.
11-12 I2 Card identifier (REQUIRED) 0
(see examples next page).
18-24 I7 Satellite ID. (blank or zero means apply 0
to all satellites.
25-44 D20.8 Element #1 of var/cov matrix as determined 0.
by column 11. [1]
45-59 D15.3 Element #2 of var/cov matrix as determined 0.
by column 11. [1]
60-72 D13.1 Element #3 of var/cov matrix as determined 0.
by column 11. [1]
73-80 D8.2 Element #4 of var/cov matrix as determined 0.
by column 11. [1]
JAN 1990
8912.0
ARC SET - Option Cards
VARCOV (cont)
Example 1 - Diagonal elements of variance/covariance matrix
1-6 8 9 11-12 18-24 25-44 45-59 60-72 73-80
VARCOV 10 7654321 V11 V22 V33 V44
VARCOV 11 7654321 V55 V66
Example 2 - Upper triangular variance/covariance matrix
1-6 8 9 11-12 18-24 25-44 45-59 60-72 73-80
VARCOV 1 10 7654321 V11 V12 V13 V14
VARCOV 1 11 7654321 V15 V16
VARCOV 1 20 7654321 V22 V23 V24 V25
VARCOV 1 21 7654321 V26
VARCOV 1 30 7654321 V33 V34 V35 V36
VARCOV 1 40 7654321 V44 V45 V46
VARCOV 1 50 7654321 V55 V56
VARCOV 1 60 7654321 V66
Where Vij represent "i"th row and the "j"th column and where the units are
as defined by the tables below.
Cartesian Variance/Covariance Units
____________________________________
\ j 1 2 3 4 5 6
i \ _________________________________________________________
|
1 | M**2 M**2 M**2 M*M/S M*M/S M*M/S
2 | M**2 M**2 M*M/S M*M/S M*M/S
3 | M**2 M*M/S M*M/S M*M/S
4 | (M/S)**2 (M/S)**2 (M/S)**2
5 | (M/S)**2 (M/S)**2
6 | (M/S)**2
JAN 1990
8912.0
ARC SET - Option Cards
VARCOV (cont)
Keplerian Variance/Covariance Units
____________________________________
\ j 1 2 3 4 5 6
i \ _________________________________________________________
|
1 | M**2 M M*RAD M*RAD M*RAD M*RAD
2 | ( )**2 ( )*RAD ( )*RAD ( )*RAD ( )*RAD
3 | RAD**2 RAD**2 RAD**2 RAD**2
4 | RAD**2 RAD**2 RAD**2
5 | RAD**2 RAD**2
6 | RAD**2
UNITS: KM =Kilometers; M =Meters ; S =Seconds ; Kg =Kilograms
DEG=Degrees ; RAD=Radians ; AS =Arc seconds; MAS=Milli-arc seconds
( )=Unitless
IF CARD OMITTED: Diagonal matrix with values of 1.0D+14 will be used
JUL 1998
9808.0
ARC SET