Meteosat Orbital Parameters

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The reference frame for the orbit is True-of-Date for the MSG satellites and Mean-of-Date for Meteosat-7 as indicated in the details below.

Last update: 3/8/2020, day: 216

CURRENT ORBIT DETAILS FOR METEOSAT-11 (MSG4)

Coordinate Frame: Earth-centred, True of date

MSG4 Orbit State

Epoch: 2020/08/03 00:00:00.000 ( 20.216.00.00.00.000 ) UTC

X-Position: X = 28307.1260603 km, X-Velocity: XDOT = 2.278404 km/s
Y-Position: Y = -31266.8055884 km, Y-Velocity: YDOT = 2.0629303 km/s
Z-Position: Z = 326.7982007 km, Z-Velocity: ZDOT = 0.0295025 km/s

SRP coefficient: CR = 1.23127

Semi-Major Axis: A = 42166.3954255 km
Eccentricity: E = 0.00028480
Inclination: I = 0.7067703 deg
Right Asc. of Asc. Node: RAAN = 273.2461224 deg
Argument of Perigee: AOP = 224.3027174 deg
True Anomaly: TA = 174.6091299 deg

Longitude at epoch: LONG = 0.12473700 deg
Mean Longitude: MEAN LONG = 0.124073 deg
Mean Drift Rate: MEAN DRIFT = 0.00984 deg/day

Perigee Height at Epoch: HPERI = 35776.24943608 km
Apogee Height at Epoch: HAPO = 35800.26741492 km

MSG4 Attitude State

Epoch: 2020/08/03 00:00:00.000 ( 20.216.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 131.663147 deg
Spin Axis Declination: DEC = 89.5843649 deg

Spin Axis Unit X: UX = -0.00482219
Spin Axis Unit Y: UY = 0.00541932
Spin Axis Unit Z: UZ = 0.99997369

MSG4 Physical State

Epoch: 2020/08/03 04:00:00.000 ( 20.216.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.6008507 rpm

Total Mass: MTOT = 1155.30513700 kg
Fuel Mass: MFUEL = 32.66505100 kg
Oxidizer Mass: MOXID = 61.13178600 kg

CURRENT ORBIT DETAILS FOR METEOSAT-10 (MSG3)

Coordinate Frame: Earth-centred, True of date

MSG3 Orbit State

Epoch: 2020/08/03 00:00:00.000 ( 20.216.00.00.00.000 ) UTC

X-Position: X = 33039.3858599 km, X-Velocity: XDOT = 1.9102266 km/s
Y-Position: Y = -26206.6498718 km, Y-Velocity: YDOT = 2.4077065 km/s
Z-Position: Z = -376.9497171 km, Z-Velocity: ZDOT = 0.0683141 km/s

SRP coefficient: CR = 1.21428

Semi-Major Axis: A = 42168.3904793 km
Eccentricity: E = 0.00013150
Inclination: I = 1.3724425 deg
Right Asc. of Asc. Node: RAAN = 343.4851571 deg
Argument of Perigee: AOP = 118.1152718 deg
True Anomaly: TA = 219.9726321 deg

Longitude at epoch: LONG = 9.54765400 deg
Mean Longitude: MEAN LONG = 9.553971 deg
Mean Drift Rate: MEAN DRIFT = -0.01740 deg/day

Perigee Height at Epoch: HPERI = 35784.70833595 km
Apogee Height at Epoch: HAPO = 35795.79862265 km

MSG3 Attitude State

Epoch: 2020/08/03 00:00:00.000 ( 20.216.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 281.3383662 deg
Spin Axis Declination: DEC = 88.9488482 deg

Spin Axis Unit X: UX = 0.00360668
Spin Axis Unit Y: UY = -0.01798699
Spin Axis Unit Z: UZ = 0.99983172

MSG3 Physical State

Epoch: 2020/08/03 04:00:00.000 ( 20.216.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.8716573 rpm

Total Mass: MTOT = 1082.10232500 kg
Fuel Mass: MFUEL = 12.25214760 kg
Oxidizer Mass: MOXID = 17.48687780 kg

CURRENT ORBIT DETAILS FOR METEOSAT-9 (MSG2)

Coordinate Frame: Earth-centred, True of date

MSG2 Orbit State

Epoch: 2020/08/03 00:00:00.000 ( 20.216.00.00.00.000 ) UTC

X-Position: X = 29871.212764 km, X-Velocity: XDOT = 2.1575766 km/s
Y-Position: Y = -29613.4794254 km, Y-Velocity: YDOT = 2.1875061 km/s
Z-Position: Z = -3034.2079432 km, Z-Velocity: ZDOT = -0.101885 km/s

SRP coefficient: CR = 1.21294

Semi-Major Axis: A = 42166.6257123 km
Eccentricity: E = 0.00020260
Inclination: I = 4.5437329 deg
Right Asc. of Asc. Node: RAAN = 70.0568923 deg
Argument of Perigee: AOP = 11.855495 deg
True Anomaly: TA = 233.4044815 deg

Longitude at epoch: LONG = 3.21715000 deg
Mean Longitude: MEAN LONG = 3.303097 deg
Mean Drift Rate: MEAN DRIFT = 0.00766 deg/day

Perigee Height at Epoch: HPERI = 35779.94575393 km
Apogee Height at Epoch: HAPO = 35797.03167067 km

MSG2 Attitude State

Epoch: 2020/08/03 00:00:00.000 ( 20.216.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 339.6979435 deg
Spin Axis Declination: DEC = 85.6228834 deg

Spin Axis Unit X: UX = 0.07157949
Spin Axis Unit Y: UY = -0.02648098
Spin Axis Unit Z: UZ = 0.99708331

MSG2 Physical State

Epoch: 2020/08/03 04:00:00.000 ( 20.216.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.5606913 rpm

Total Mass: MTOT = 1089.19612200 kg
Fuel Mass: MFUEL = 12.95600080 kg
Oxidizer Mass: MOXID = 22.44912140 kg

CURRENT ORBIT DETAILS FOR METEOSAT-8 (MSG1)

Coordinate Frame: Earth-centred, True of date

MSG1 Orbit State

Epoch: 2020/08/03 00:00:00.000 ( 20.216.00.00.00.000 ) UTC

X-Position: X = 41689.0124552 km, X-Velocity: XDOT = 0.3574657 km/s
Y-Position: Y = -4636.1465903 km, Y-Velocity: YDOT = 3.0480517 km/s
Z-Position: Z = -4360.8399451 km, Z-Velocity: ZDOT = 0.1795963 km/s

SRP coefficient: CR = 1.17673

Semi-Major Axis: A = 42167.1531331 km
Eccentricity: E = 0.00014910
Inclination: I = 6.8207105 deg
Right Asc. of Asc. Node: RAAN = 54.0188552 deg
Argument of Perigee: AOP = 81.0686415 deg
True Anomaly: TA = 218.3922495 deg

Longitude at epoch: LONG = 41.62322900 deg
Mean Longitude: MEAN LONG = 41.470923 deg
Mean Drift Rate: MEAN DRIFT = -0.01765 deg/day

Perigee Height at Epoch: HPERI = 35782.72901057 km
Apogee Height at Epoch: HAPO = 35795.30325563 km

MSG1 Attitude State

Epoch: 2020/08/03 00:00:00.000 ( 20.216.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 324.1211754 deg
Spin Axis Declination: DEC = 83.3290489 deg

Spin Axis Unit X: UX = 0.09412543
Spin Axis Unit Y: UY = -0.06808244
Spin Axis Unit Z: UZ = 0.99322967

MSG1 Physical State

Epoch: 2020/08/03 04:00:00.000 ( 20.216.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.7428573 rpm

Total Mass: MTOT = 1081.48588700 kg
Fuel Mass: MFUEL = 10.89967520 kg
Oxidizer Mass: MOXID = 16.75121230 kg

Comments:
A Meteosat-8 EWSK manoeuvre was executed as planned on 28/07/2020 at 16:58:00 UTC (day 210).

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