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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: 13/8/2018, day: 225

CURRENT ORBIT DETAILS FOR METEOSAT-11 (MSG4)

Coordinate Frame: Earth-centred, True of date

MSG4 Orbit State

Epoch: 2018/08/13 00:00:00.000 ( 18.225.00.00.00.000 ) UTC

X-Position: X = 32874.0047635 km, X-Velocity: XDOT = 1.9243128 km/s
Y-Position: Y = -26393.9491156 km, Y-Velocity: YDOT = 2.3977224 km/s
Z-Position: Z = 895.7252065 km, Z-Velocity: ZDOT = 0.0153486 km/s

SRP coefficient: CR = 1.2179

Semi-Major Axis: A = 42166.3367464 km
Eccentricity: E = 0.00009910
Inclination: I = 1.2503513 deg
Right Asc. of Asc. Node: RAAN = 244.4733955 deg
Argument of Perigee: AOP = 190.7230724 deg
True Anomaly: TA = 246.0462159 deg

Longitude at epoch: LONG = -0.14161500 deg
Mean Longitude: MEAN LONG = -0.129978 deg
Mean Drift Rate: MEAN DRIFT = 0.00789 deg/day

Perigee Height at Epoch: HPERI = 35784.02106243 km
Apogee Height at Epoch: HAPO = 35792.37843037 km

MSG4 Attitude State

Epoch: 2018/08/13 00:00:00.000 ( 18.225.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 127.1757253 deg
Spin Axis Declination: DEC = 88.7795524 deg

Spin Axis Unit X: UX = -0.01287030
Spin Axis Unit Y: UY = 0.01697092
Spin Axis Unit Z: UZ = 0.99977315

MSG4 Physical State

Epoch: 2018/08/13 04:00:00.000 ( 18.225.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.5262129 rpm

Total Mass: MTOT = 1192.76154100 kg
Fuel Mass: MFUEL = 46.89380550 kg
Oxidizer Mass: MOXID = 84.35943620 kg

CURRENT ORBIT DETAILS FOR METEOSAT-10 (MSG3)

Coordinate Frame: Earth-centred, True of date

MSG3 Orbit State

Epoch: 2018/08/13 00:00:00.000 ( 18.225.00.00.00.000 ) UTC

X-Position: X = 36871.6218711 km, X-Velocity: XDOT = 1.4909595 km/s
Y-Position: Y = -20452.873641 km, Y-Velocity: YDOT = 2.6884128 km/s
Z-Position: Z = -259.7180954 km, Z-Velocity: ZDOT = 0.0528303 km/s

SRP coefficient: CR = 1.19437

Semi-Major Axis: A = 42165.2476991 km
Eccentricity: E = 0.00019580
Inclination: I = 1.045833 deg
Right Asc. of Asc. Node: RAAN = 350.7022945 deg
Argument of Perigee: AOP = 69.9495565 deg
True Anomaly: TA = 270.3277649 deg

Longitude at epoch: LONG = 9.60139000 deg
Mean Longitude: MEAN LONG = 9.620943 deg
Mean Drift Rate: MEAN DRIFT = 0.02454 deg/day

Perigee Height at Epoch: HPERI = 35778.85474360 km
Apogee Height at Epoch: HAPO = 35795.36665460 km

MSG3 Attitude State

Epoch: 2018/08/13 00:00:00.000 ( 18.225.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 295.3704452 deg
Spin Axis Declination: DEC = 89.0594176 deg

Spin Axis Unit X: UX = 0.00703354
Spin Axis Unit Y: UY = -0.01483235
Spin Axis Unit Z: UZ = 0.99986526

MSG3 Physical State

Epoch: 2018/08/13 04:00:00.000 ( 18.225.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.8031027 rpm

Total Mass: MTOT = 1120.31245200 kg
Fuel Mass: MFUEL = 26.76730860 kg
Oxidizer Mass: MOXID = 41.18184350 kg

CURRENT ORBIT DETAILS FOR METEOSAT-9 (MSG2)

Coordinate Frame: Earth-centred, True of date

MSG2 Orbit State

Epoch: 2018/08/13 00:00:00.000 ( 18.225.00.00.00.000 ) UTC

X-Position: X = 34325.6689439 km, X-Velocity: XDOT = 1.7786689 km/s
Y-Position: Y = -24394.4484922 km, Y-Velocity: YDOT = 2.5075178 km/s
Z-Position: Z = -2142.5299111 km, Z-Velocity: ZDOT = -0.0487953 km/s

SRP coefficient: CR = 1.1914

Semi-Major Axis: A = 42167.5614348 km
Eccentricity: E = 0.00009740
Inclination: I = 3.0515431 deg
Right Asc. of Asc. Node: RAAN = 71.971989 deg
Argument of Perigee: AOP = 312.8777146 deg
True Anomaly: TA = 299.7729342 deg

Longitude at epoch: LONG = 3.21822600 deg
Mean Longitude: MEAN LONG = 3.248740 deg
Mean Drift Rate: MEAN DRIFT = -0.00646 deg/day

Perigee Height at Epoch: HPERI = 35785.31731432 km
Apogee Height at Epoch: HAPO = 35793.53155528 km

MSG2 Attitude State

Epoch: 2018/08/13 00:00:00.000 ( 18.225.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 340.8643153 deg
Spin Axis Declination: DEC = 87.4825644 deg

Spin Axis Unit X: UX = 0.04149641
Spin Axis Unit Y: UY = -0.01439837
Spin Axis Unit Z: UZ = 0.99903490

MSG2 Physical State

Epoch: 2018/08/13 04:00:00.000 ( 18.225.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.4833473 rpm

Total Mass: MTOT = 1090.04392900 kg
Fuel Mass: MFUEL = 13.28460850 kg
Oxidizer Mass: MOXID = 22.96832140 kg

CURRENT ORBIT DETAILS FOR METEOSAT-8 (MSG1)

Coordinate Frame: Earth-centred, True of date

MSG1 Orbit State

Epoch: 2018/08/13 00:00:00.000 ( 18.225.00.00.00.000 ) UTC

X-Position: X = 41969.6371361 km, X-Velocity: XDOT = -0.1522164 km/s
Y-Position: Y = 2277.2321124 km, Y-Velocity: YDOT = 3.0660582 km/s
Z-Position: Z = -3310.9499345 km, Z-Velocity: ZDOT = 0.1755113 km/s

SRP coefficient: CR = 1.17467

Semi-Major Axis: A = 42164.1257237 km
Eccentricity: E = 0.00011410
Inclination: I = 5.5714629 deg
Right Asc. of Asc. Node: RAAN = 56.9614127 deg
Argument of Perigee: AOP = 247.9886507 deg
True Anomaly: TA = 58.0265714 deg

Longitude at epoch: LONG = 41.72451100 deg
Mean Longitude: MEAN LONG = 41.592194 deg
Mean Drift Rate: MEAN DRIFT = 0.03389 deg/day

Perigee Height at Epoch: HPERI = 35781.17779695 km
Apogee Height at Epoch: HAPO = 35790.79965045 km

MSG1 Attitude State

Epoch: 2018/08/13 00:00:00.000 ( 18.225.00.00.00.000 ) UTC

Spin Axis Right Asc.: RA = 327.0356164 deg
Spin Axis Declination: DEC = 84.5571207 deg

Spin Axis Unit X: UX = 0.07958281
Spin Axis Unit Y: UY = -0.05161138
Spin Axis Unit Z: UZ = 0.99549126

MSG1 Physical State

Epoch: 2018/08/13 04:00:00.000 ( 18.225.04.00.00.000 ) UTC

Spin Rate: SPIN = 99.8593559 rpm

Total Mass: MTOT = 1083.21705400 kg
Fuel Mass: MFUEL = 11.57067030 kg
Oxidizer Mass: MOXID = 17.81138460 kg

Comments:
A Meteosat-8 EWSK manoeuvre is planned on 14/08/2018 at 05:28:00 UTC (day 226).