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: 26/10/2020, day: 300

CURRENT ORBIT DETAILS FOR METEOSAT-11 (MSG4)

Coordinate Frame: Earth-centred, True of date

MSG4 Orbit State

Epoch: 2020/10/26 00:00:00.000 ( 20.300.00.00.00.000 ) UTC

X-Position: X = 34750.9089057 km, X-Velocity: XDOT = -1.7417522 km/s
Y-Position: Y = 23890.4765256 km, Y-Velocity: YDOT = 2.5330833 km/s
Z-Position: Z = 321.3733066 km, Z-Velocity: ZDOT = -0.0177308 km/s

SRP coefficient: CR = 1.2522

Semi-Major Axis: A = 42166.5573065 km
Eccentricity: E = 0.00018300
Inclination: I = 0.5475571 deg
Right Asc. of Asc. Node: RAAN = 267.3903963 deg
Argument of Perigee: AOP = 262.7311683 deg
True Anomaly: TA = 224.3848334 deg

Longitude at epoch: LONG = -0.31737800 deg
Mean Longitude: MEAN LONG = -0.301053 deg
Mean Drift Rate: MEAN DRIFT = -0.01017 deg/day

Perigee Height at Epoch: HPERI = 35780.70382651 km
Apogee Height at Epoch: HAPO = 35796.13678649 km

MSG4 Attitude State

Epoch: 2020/10/26 00:00:00.000 ( 20.300.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 116.9639038 deg
Spin Axis Declination: DEC = 89.4286576 deg

Spin Axis Unit X: UX = -0.00452143
Spin Axis Unit Y: UY = 0.00888765
Spin Axis Unit Z: UZ = 0.99995028

MSG4 Physical State

Epoch: 2020/10/26 04:00:00.000 ( 20.300.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.5725987 rpm

Total Mass: MTOT = 1155.20731500 kg
Fuel Mass: MFUEL = 32.62713560 kg
Oxidizer Mass: MOXID = 61.07187970 kg

CURRENT ORBIT DETAILS FOR METEOSAT-10 (MSG3)

Coordinate Frame: Earth-centred, True of date

MSG3 Orbit State

Epoch: 2020/10/26 00:00:00.000 ( 20.300.00.00.00.000 ) UTC

X-Position: X = 30305.1809502 km, X-Velocity: XDOT = -2.137748 km/s
Y-Position: Y = 29310.9896029 km, Y-Velocity: YDOT = 2.209171 km/s
Z-Position: Z = 784.1399939 km, Z-Velocity: ZDOT = 0.0387577 km/s

SRP coefficient: CR = 1.23501

Semi-Major Axis: A = 42164.8661468 km
Eccentricity: E = 0.00007870
Inclination: I = 1.2873229 deg
Right Asc. of Asc. Node: RAAN = 348.1866089 deg
Argument of Perigee: AOP = 227.6415932 deg
True Anomaly: TA = 188.223109 deg

Longitude at epoch: LONG = 9.21955900 deg
Mean Longitude: MEAN LONG = 9.229394 deg
Mean Drift Rate: MEAN DRIFT = 0.00808 deg/day

Perigee Height at Epoch: HPERI = 35783.41077183 km
Apogee Height at Epoch: HAPO = 35790.04752177 km

MSG3 Attitude State

Epoch: 2020/10/26 00:00:00.000 ( 20.300.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 284.9840249 deg
Spin Axis Declination: DEC = 89.105959 deg

Spin Axis Unit X: UX = 0.00403424
Spin Axis Unit Y: UY = -0.01507278
Spin Axis Unit Z: UZ = 0.99987826

MSG3 Physical State

Epoch: 2020/10/26 04:00:00.000 ( 20.300.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.8515544 rpm

Total Mass: MTOT = 1082.01620600 kg
Fuel Mass: MFUEL = 12.21876830 kg
Oxidizer Mass: MOXID = 17.43413860 kg

CURRENT ORBIT DETAILS FOR METEOSAT-9 (MSG2)

Coordinate Frame: Earth-centred, True of date

MSG2 Orbit State

Epoch: 2020/10/26 00:00:00.000 ( 20.300.00.00.00.000 ) UTC

X-Position: X = 32962.5386357 km, X-Velocity: XDOT = -1.9028689 km/s
Y-Position: Y = 26229.7583364 km, Y-Velocity: YDOT = 2.4056148 km/s
Z-Position: Z = -1780.584443 km, Z-Velocity: ZDOT = 0.2148243 km/s

SRP coefficient: CR = 1.2568

Semi-Major Axis: A = 42163.6465846 km
Eccentricity: E = 0.00005930
Inclination: I = 4.6826674 deg
Right Asc. of Asc. Node: RAAN = 69.5777021 deg
Argument of Perigee: AOP = 38.4736451 deg
True Anomaly: TA = 290.3747373 deg

Longitude at epoch: LONG = 3.68579200 deg
Mean Longitude: MEAN LONG = 3.613573 deg
Mean Drift Rate: MEAN DRIFT = 0.02551 deg/day

Perigee Height at Epoch: HPERI = 35783.00928036 km
Apogee Height at Epoch: HAPO = 35788.00988884 km

MSG2 Attitude State

Epoch: 2020/10/26 00:00:00.000 ( 20.300.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 341.7591609 deg
Spin Axis Declination: DEC = 85.6487958 deg

Spin Axis Unit X: UX = 0.07205734
Spin Axis Unit Y: UY = -0.02374817
Spin Axis Unit Z: UZ = 0.99711773

MSG2 Physical State

Epoch: 2020/10/26 04:00:00.000 ( 20.300.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.5473867 rpm

Total Mass: MTOT = 1089.13165500 kg
Fuel Mass: MFUEL = 12.93101370 kg
Oxidizer Mass: MOXID = 22.40964170 kg

CURRENT ORBIT DETAILS FOR METEOSAT-8 (MSG1)

Coordinate Frame: Earth-centred, True of date

MSG1 Orbit State

Epoch: 2020/10/26 00:00:00.000 ( 20.300.00.00.00.000 ) UTC

X-Position: X = 10174.1660371 km, X-Velocity: XDOT = -2.9684438 km/s
Y-Position: Y = 40877.9211226 km, Y-Velocity: YDOT = 0.7222263 km/s
Z-Position: Z = 1965.8195211 km, Z-Velocity: ZDOT = 0.3426672 km/s

SRP coefficient: CR = 1.24432

Semi-Major Axis: A = 42164.8874018 km
Eccentricity: E = 0.00014650
Inclination: I = 6.9395474 deg
Right Asc. of Asc. Node: RAAN = 53.4784537 deg
Argument of Perigee: AOP = 188.3495539 deg
True Anomaly: TA = 194.3451098 deg

Longitude at epoch: LONG = 41.19851500 deg
Mean Longitude: MEAN LONG = 41.346256 deg
Mean Drift Rate: MEAN DRIFT = 0.00181 deg/day

Perigee Height at Epoch: HPERI = 35780.57324580 km
Apogee Height at Epoch: HAPO = 35792.92755780 km

MSG1 Attitude State

Epoch: 2020/10/26 00:00:00.000 ( 20.300.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 323.7842028 deg
Spin Axis Declination: DEC = 82.7635915 deg

Spin Axis Unit X: UX = 0.10162715
Spin Axis Unit Y: UY = -0.07442287
Spin Axis Unit Z: UZ = 0.99203486

MSG1 Physical State

Epoch: 2020/10/26 04:00:00.000 ( 20.300.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.7142465 rpm

Total Mass: MTOT = 1081.28334800 kg
Fuel Mass: MFUEL = 10.82117170 kg
Oxidizer Mass: MOXID = 16.62717680 kg

Comments:
A Meteosat-8 SLEW manoeuvre was executed as planned on 20/10/2020 at 12:13:00.000 UTC (day 294).
A Meteosat-9 EWSK manoeuvre is planned on 27/10/2020 at 18:28:00.000 UTC (day 301).

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