----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
PBIAS 9001 517603901 1.
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
COLUMNS FORMAT DESCRIPTION DEFAULT VALUE & UNITS
1-6 A6 PBIAS - Requests adjustment of pass by
pass measurement or timing biases. [Note 2]
7-14 I8 Station Number. 0
15-17 I3 Bias Type. See list of bias types after 0
this option description.
18-24 I7 Satellite ID. 0
25-44 D20.8 A priori bias value. Units: 0.
Length - M, Time - S, Angles - RAD
45-59 D15.3 Start date and time for generating pass by 0.
pass biases (YYMMDDHHMMSS). See NOTE 1.
60-72 D13.1 End date and time for generation of pass by 0.
pass biases. (YYMMDDHHMMSS). See NOTE 1.
73-80 D8.2 Standard deviation of the a priori bias in
the same units. This field must be a non-zero.
UNITS: KM =Kilometers; M =Meters ; S =Seconds ; Kg =Kilograms
DEG=Degrees ; RAD=Radians ; AS =Arc seconds; MAS=Milli-arc seconds
NOTE [1]: If the start and end dates are left blank pass by pass biases
will be generated for the entire data span.
NOTE [2]: Warning. If the PBIAS option is used with the PUNCH option,
MBIAS cards are generated from the PBIAS option. This means
that the original PBIAS cards must be removed from the
setup if the MBIAS cards generated by the PUNCH option are
used in the next run.
NOTE [3]: If the measurement type is larger than 99 (3 digit) use
the PBIASM card to specify it.
DEC 1992
9212.0
ARC SET - Option Cards
PBIAS (cont)
The GEODYN-II bias types include all of the GEODYN-II measurement types as well as other types which are independent from measurement type or which are an extension of the simple measurement bias.
At present, the only bias types defined include simple constant measurement biases and simple time biases independent of measurement type. Other future bias types will include linearly varying measurement biases, observation scale biases, tropospheric and ionospheric refraction scale biases, station clock polynomials and satellite clock polynomials.
Bias type numbers are assigned as follows:
SATELLITE STATION
BIAS DESCRIPTION BIAS TYPE NUMBER DEPENDENT DEPENDENT
---------------- ---------------- --------- ---------
simple measurement biases measurement type yes or yes
measurement bias varying meas. type + 100 yes or yes
linearly with time
measurement scale bias meas. type + 200 yes or yes
tropospheric refraction 500 no yes
scale bias
ionospheric refraction 600 no yes
scale bias
simple time biases 900 yes or yes
clock frequency bias 901 yes or yes
clock frequency drift 902 yes or yes
DEC 1992
9212.0
ARC SET - Option Cards