Galaxy-4R

USA



Launch data:

Designation26298 / 00020A
Launch date19 Apr 2000 - 00:29 UT
Launch site Ko, ELA-2
Launch vehicle Ariane-42L (V-129)
MissionCommercial: Communications
Geostationary orbit on April 27.59, 2000:
Perigee / Apogee 35760 x 35792 km
Eccentricity 0.0003
Inclination 0.04 deg
Period 1435.58 min


Specifications

Prime contractorBoeing Satellite Systems (Hughes?)
OperatorPanAmSat (Intelsat, Ltd.)
PlatformHS-601HP
Mass at launch3668 kg
Dry mass1895 kg
Mass in orbit2511 (3668?) kg
Basic shape  Box + 2 panels
Dimensionstowed: 2.7 x 3.6 x 4 m
Solar array26 m span, gallium arsenide
Stabilization 3-axis
DC power BOL: 8800 W
EOL: 7800 W
Design lifetime 15 years

Beacons: 4.198125 V and 4.199625 H GHz
ULPC: 12.195 V and 11.701 H GHz

Location:

DatePositionRemarks
L: 19 Apr 200073°W -
Jun 2000 99°W -
Apr 2009 76.89°W -


C-band

Main transponders 24
Backup transponders 4
Power 40 W
Bandwidth 36 MHz
Coverage North America
EIRP max 41 dBW
G/T max -1 dB/K
Polarization linear H/V
SFD -94 dBW/m² (at 0 G/T & 0 dB attenuation)
Frequencies Uplink: 5.925 - 6.425 GHz
Downlink: 3.700 - 4.200 GHz

Ku-band:

Main transponders 24
Backup transponders 4
Power 108 W
Bandwidth 36 MHz
Coverage North America
EIRP max 45 dBW
G/T max 0 dB/K
Polarization linear H/V
SFD -94 dBW/m² (at 0 G/T & 0 dB attenuation)
Frequencies Uplink: 14.000 - 14.500 GHz
Downlink: 11.700 - 12.200 GHz

Ku-band transponder frequency chart (GHz)

Horizontal
Uplink
Horizontal
Downlink
Transponder Vertical
Downlink
Vertical
Uplink
  11.720 1   14.020
14.040   2 11.740  
  11.760 3   14.060
14.080   4 11.780  
  11.800 5   14.100
14.120   6 11.820  
  11.840 7   14.140
14.160   8 11.860  
  11.880 9   14.180
14.200   10 11.900  
  11.920 11   14.220
14.240   12 11.940  
  11.960 13   14.260
14.280   14 11.980  
  12.000 15   14.300
14.320   16 12.020  
  12.040 17   14.340
14.360   18 12.060  
  12.080 19   14.380
14.400   20 12.100  
  12.120 21   14.420
14.440   22 12.140  
  12.160 23   14.460
14.480   24 12.180  


Astrophilately covers:

Ariane-42L

Launch cancel Kourou

Ariane-42L

Headquarter cancel Paris

Credit covers: J.VdDr.

Ref.: #7, #15, #206, #226, #415 - update: 04.11.19 Home