----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
MBIAS 7063 517603901 0. 850731000000. 850831000000. 10.
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
COLUMNS FORMAT DESCRIPTION DEFAULT VALUE & UNITS
1-5 A5 MBIAS - Requests application and/or
adjustment of measurement or station
timing bias.
6 A1 n - Used for estimation of multi-station 0
and/or multi-satellite identification.
If "n" is zero or one, then this card
takes on the form of the "MBIAS" card.
"n" may also take on the values two
or three. When this occurs, the
station and satellite information on
these cards ("MBIAS2" or "MBIAS3")
augments that already provided on the
"MBIAS" form card.
7-14 I8 Station number for the "n"th station in 0
the measurement configuration.
15-17 I3 Bias Type. See list of measurement types 0
after ENDARC description
(not used if "n" equals 2 or 3).
18-24 I7 Satellite ID for the "n"th satellite in 0
the measurement configuration.
25-44 D20.8 Value of the bias (a priori estimate 0.
if adjusted). Units are:
Length - M, Time - S, Angles - RAD
45-59 D15.3 Date and time at which the bias is to 0.
begin in form: YYMMDDHHMMSS.
60-72 D13.1 Date and time at which the bias is to 0.
end in form: YYMMDDHHMMSS.
MAY 1995
9505.0
ARC SET - Option Cards
MBIASn (cont)
COLUMNS FORMAT DESCRIPTION DEFAULT VALUE & UNITS
73-80 D8.2 Standard deviation of the a priori 0.
bias in the same units as bias value.
If this value is greater than zero bias
will be adjusted.
UNITS: KM =Kilometers; M =Meters ; S =Seconds ; Kg =Kilograms
DEG=Degrees ; RAD=Radians ; AS =Arc seconds; MAS=Milli-arc seconds
NOTE: If the time fields on cards with "n" equal to 2 or 3
are non-zero GEODYN will internally generate a complete
new set of MBIAS cards having the same configuration
with different times. The bias type field will be
ignored on MBIAS cards with "n" equal to 2 or 3.
Please also see EBIAS and PBIAS options.
EXAMPLE FOR SAT-TO-SAT MEASUREMENTS:
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
MBIAS1 0577502701 0. 780101000000. 780101000000.
MBIAS2 18570577403901 780101000000. 780101000000.
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
MAY 1995
9505.0
ARC SET - Option Cards
MBIASn (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:
BIAS DESCRIPTION BIAS TYPE NUMBER DEPENDENT DEPENDENT UNITS
---------------- ---------------- --------- --------- -----
simple measurement biases measurement type yes or yes
measurement scale bias meas. type + 100 yes or yes
station clock bias 300 no yes sec
station clock linear drift 301 no yes sec/hour
2
station clock quadratic drift 302 no yes sec/hour
3
station clock cubic drift 303 no yes sec/hour
satellite clock bias 400 yes no sec
satellite clock linear drift 401 yes no sec/hour
2
satellite clock quadratic drift 402 yes no sec/hour
3
satellite clock cubic drift 403 yes no sec/hour
tropospheric refraction 500 no yes [NOTE 1]
scale bias
ionospheric refraction 600 no yes
scale bias
simple time biases 900 yes or yes
[NOTE 1] In order to apply a tropospheric refraction scale bias the
parameter must be adjusted.
MAY 1995
9505.0
ARC SET - Option Cards