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: 18/3/2019, day: 77

CURRENT ORBIT DETAILS FOR METEOSAT-11 (MSG4)

Coordinate Frame: Earth-centred, True of date

MSG4 Orbit State

Epoch: 2019/03/18 00:00:00.000 ( 19.077.00.00.00.000 ) UTC

X-Position: X = -42004.3338206 km, X-Velocity: XDOT = -0.2696762 km/s
Y-Position: Y = 3695.036863 km, Y-Velocity: YDOT = -3.0623431 km/s
Z-Position: Z = -501.3033319 km, Z-Velocity: ZDOT = 0.033962 km/s

SRP coefficient: CR = 1.16181

Semi-Major Axis: A = 42167.244032 km
Eccentricity: E = 0.00006600
Inclination: I = 0.9298256 deg
Right Asc. of Asc. Node: RAAN = 222.0702638 deg
Argument of Perigee: AOP = 97.7968525 deg
True Anomaly: TA = 215.1018675 deg

Longitude at epoch: LONG = -0.29259800 deg
Mean Longitude: MEAN LONG = -0.288628 deg
Mean Drift Rate: MEAN DRIFT = -0.00936 deg/day

Perigee Height at Epoch: HPERI = 35786.32399389 km
Apogee Height at Epoch: HAPO = 35791.89007011 km

MSG4 Attitude State

Epoch: 2019/03/18 00:00:00.000 ( 19.077.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 126.8272345 deg
Spin Axis Declination: DEC = 88.6044307 deg

Spin Axis Unit X: UX = -0.01459841
Spin Axis Unit Y: UY = 0.01949477
Spin Axis Unit Z: UZ = 0.99970338

MSG4 Physical State

Epoch: 2019/03/18 04:00:00.000 ( 19.077.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.5106174 rpm

Total Mass: MTOT = 1192.55132500 kg
Fuel Mass: MFUEL = 46.81232650 kg
Oxidizer Mass: MOXID = 84.23069940 kg

CURRENT ORBIT DETAILS FOR METEOSAT-10 (MSG3)

Coordinate Frame: Earth-centred, True of date

MSG3 Orbit State

Epoch: 2019/03/18 00:00:00.000 ( 19.077.00.00.00.000 ) UTC

X-Position: X = -42033.0187263 km, X-Velocity: XDOT = 0.2437089 km/s
Y-Position: Y = -3348.5570911 km, Y-Velocity: YDOT = -3.0644126 km/s
Z-Position: Z = 111.2208048 km, Z-Velocity: ZDOT = -0.0516192 km/s

SRP coefficient: CR = 1.14185

Semi-Major Axis: A = 42164.7027524 km
Eccentricity: E = 0.00009890
Inclination: I = 0.973818 deg
Right Asc. of Asc. Node: RAAN = 13.4818501 deg
Argument of Perigee: AOP = 58.0151673 deg
True Anomaly: TA = 113.0565579 deg

Longitude at epoch: LONG = 9.28950500 deg
Mean Longitude: MEAN LONG = 9.280937 deg
Mean Drift Rate: MEAN DRIFT = 0.01755 deg/day

Perigee Height at Epoch: HPERI = 35782.39566330 km
Apogee Height at Epoch: HAPO = 35790.73584150 km

MSG3 Attitude State

Epoch: 2019/03/18 00:00:00.000 ( 19.077.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 292.3749685 deg
Spin Axis Declination: DEC = 89.1725657 deg

Spin Axis Unit X: UX = 0.00549719
Spin Axis Unit Y: UY = -0.01335373
Spin Axis Unit Z: UZ = 0.99989572

MSG3 Physical State

Epoch: 2019/03/18 04:00:00.000 ( 19.077.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.7799025 rpm

Total Mass: MTOT = 1119.99296000 kg
Fuel Mass: MFUEL = 26.64347440 kg
Oxidizer Mass: MOXID = 40.98618550 kg

CURRENT ORBIT DETAILS FOR METEOSAT-9 (MSG2)

Coordinate Frame: Earth-centred, True of date

MSG2 Orbit State

Epoch: 2019/03/18 00:00:00.000 ( 19.077.00.00.00.000 ) UTC

X-Position: X = -42082.8624883 km, X-Velocity: XDOT = -0.0814968 km/s
Y-Position: Y = 1069.0827687 km, Y-Velocity: YDOT = -3.0729533 km/s
Z-Position: Z = 2445.5386952 km, Z-Velocity: ZDOT = -0.0536064 km/s

SRP coefficient: CR = 1.12147

Semi-Major Axis: A = 42166.3015964 km
Eccentricity: E = 0.00010580
Inclination: I = 3.4720655 deg
Right Asc. of Asc. Node: RAAN = 71.7775266 deg
Argument of Perigee: AOP = 2.2764447 deg
True Anomaly: TA = 104.461732 deg

Longitude at epoch: LONG = 3.27941400 deg
Mean Longitude: MEAN LONG = 3.242751 deg
Mean Drift Rate: MEAN DRIFT = 0.00109 deg/day

Perigee Height at Epoch: HPERI = 35783.70340169 km
Apogee Height at Epoch: HAPO = 35792.62579111 km

MSG2 Attitude State

Epoch: 2019/03/18 00:00:00.000 ( 19.077.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 341.1532311 deg
Spin Axis Declination: DEC = 86.6091893 deg

Spin Axis Unit X: UX = 0.05597520
Spin Axis Unit Y: UY = -0.01910651
Spin Axis Unit Z: UZ = 0.99824933

MSG2 Physical State

Epoch: 2019/03/18 04:00:00.000 ( 19.077.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.5264012 rpm

Total Mass: MTOT = 1089.75517000 kg
Fuel Mass: MFUEL = 13.17268630 kg
Oxidizer Mass: MOXID = 22.79148440 kg

CURRENT ORBIT DETAILS FOR METEOSAT-8 (MSG1)

Coordinate Frame: Earth-centred, True of date

MSG1 Orbit State

Epoch: 2019/03/18 00:00:00.000 ( 19.077.00.00.00.000 ) UTC

X-Position: X = -33607.4392249 km, X-Velocity: XDOT = 1.8382019 km/s
Y-Position: Y = -25442.6206654 km, Y-Velocity: YDOT = -2.4454148 km/s
Z-Position: Z = 1422.1846653 km, Z-Velocity: ZDOT = -0.2998118 km/s

SRP coefficient: CR = 1.13539

Semi-Major Axis: A = 42167.1438814 km
Eccentricity: E = 0.00023520
Inclination: I = 5.9236057 deg
Right Asc. of Asc. Node: RAAN = 56.1041299 deg
Argument of Perigee: AOP = 8.4935229 deg
True Anomaly: TA = 152.4354783 deg

Longitude at epoch: LONG = 41.86231700 deg
Mean Longitude: MEAN LONG = 41.761201 deg
Mean Drift Rate: MEAN DRIFT = -0.03111 deg/day

Perigee Height at Epoch: HPERI = 35779.08916916 km
Apogee Height at Epoch: HAPO = 35798.92459364 km

MSG1 Attitude State

Epoch: 2019/03/18 00:00:00.000 ( 19.077.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 325.844947 deg
Spin Axis Declination: DEC = 84.1604423 deg

Spin Axis Unit X: UX = 0.08419462
Spin Axis Unit Y: UY = -0.05712210
Spin Axis Unit Z: UZ = 0.99481070

MSG1 Physical State

Epoch: 2019/03/18 04:00:00.000 ( 19.077.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.8142176 rpm

Total Mass: MTOT = 1082.61934800 kg
Fuel Mass: MFUEL = 11.33900120 kg
Oxidizer Mass: MOXID = 17.44534740 kg

Comments:
A Meteosat-8 EWSK manoeuvre was executed on 13/03/2019 at 18:28:00 UTC (day 072), one day later than originally planned.

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