----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
FLUX 1 0
FLUX 1 1372.5398
----+----0----+----0----+----0----+----0----+----0----+----0----+----0----+----0
COLUMNS FORMAT DESCRIPTION DEFAULT VALUES & UNIT
1-6 A6 FLUX - Adds and/or modifies FLUX
(Solar and Magnetic) values in
built-in tables.
7 I1 Table printout control for flux, polar 0
motion, A.1-UTC, and A.1-UT1 data
= 0 Table values for 36 days will
be printed.
= 1 All Table values used for this
run will be printed.
8 I1 Flux Kp indicator. 0
= 0 FLUX Kp values will be
obtained from columns 73-80 of
this card.
= 1 FLUX Kp values will be calculated
from Ap values.[NOTE 1]
9 I1 Flux card indicator 0
= 0 FLUX card used to modify
flux values in built-in tables
= 1 FLUX card specifies solar flux
at 1 AU, in the
real field 25-44 [NOTE 2]
25-44 D20.8 Date of FLUX values (in form 0.
YYMMDD). (Col. 9 = 0)
-22
Solar flux at 1AU (Col. 9 = 1) 1372.5398 10 W/M**2
APRIL 1994
9404.0
GLOBAL SET
FLUX (cont)
COLUMNS FORMAT DESCRIPTION DEFAULT VALUE & UNITS
-22
45-59 D15.3 Value of SOLAR FLUX (F10.7 at 1 A.U). 0. 10 W/M**2
If blank, value in table will not be
altered. [NOTE 3]
-22
60-72 D13.1 Uses input value for average solar 0. 10 W/M**2
flux, if left blank, average will
not be altered.
73-80 D8.2 Value of magnetic flux Kp. If
column 8 contains a 1 this input
value is
_ Kpi
Kp= log[ (sum (e ) for i=1,8) / 8]
where Kpi are the three-hourly
values of Kp.
NOTES:
When dates that are beyond the end of the flux tables are requested
the average value of the last month is used. This is true for both
solar and magnetic flux.
Solar and magnetic flux override requests are applied to the day
specified in columns 25-44 only.
[1] Kp values will be obtained by cubic interpolation of the following
table
Kp Ap Kp Ap Kp Ap Kp Ap
0. 0 2.3333 9 4.6666 39 7.0000 132
0.3333 2 2.6666 12 5.0000 48 7.3333 154
0.6666 3 3.0000 15 5.3333 56 7.6666 179
1.0000 4 3.3333 18 5.6666 67 8.0000 207
1.3333 5 3.6666 22 6.0000 80 8.3333 236
1.6666 6 4.0000 27 6.3333 94 8.6666 300
REFERENCE: "Geomagnetic Indices," by Gordon Rostoker, Reviews of
Geophysics and Space Physics, Vol. 10, No. 4, November 1972.
APRIL 1994
9404.0
GLOBAL SET
FLUX (cont)
[2] This card can be used with or without the first flux card
(i.e. col 9 = 0) If column 9 does not equal one, field one
WILL NOT represent the solar flux at 1 AU. When col 9=1 this
card CAN ONLY be used to specify the solar flux at 1 AU. A
second card must be used to specify additional options.
The solar flux at 1 AU is divided by the speed of light to
compute the solar radiation pressure on the satellite.
Therefore, when specifying this value, one must insure that
the speed of light is consistent.
[3] The solar flux values input to GEODYN are the 1 A.U. values. GEODYN
will scale the solar flux values to the actual earth-sun distance.
The values printed out by GEODYN IIS are the scaled values.
[4] Both FLUX Cards are accepted in the same run.
UNITS: KM =Kilometers; M =Meters ; S =Seconds ; M/S=Meters per second
UNITS: DEG=Degrees ; RAD=Radians ; AS =Arc seconds; MAS=Milli-arc seconds
UNITS: H =Hertz ; MH =Mega-Hertz; W =Watts
IF FIRST CARD OMITTED: Values from tables file on UNIT 2 will be used.
IF SECOND CARD OMITTED: Default value of solar flux at 1 AU will be used.
SEPT 1990
9007.0
GLOBAL SET