| Date of Launch |
17 - 04 - 2000 |
| Launch
Vehicle |
Proton Flight 274 |
| Time Of
Life |
approx. 10 year |
|
Location |
36 east |
|
Inclined |
no |
|
Former Locations |
39 east (04-200 until 06-2000) |
|
Graveyard Date |
2010 |
The SESAT 1 satellite provides a
widebeam coverage, extending over a very wide geographical area with enhanced
coverage of Western Europe, and a steerable coverage positioned over sub-Saharan
Africa.
Six of the eighteen channels can be independently connected to either the
steerable or the widebeam coverage. This permits communication between the two
beams, as well as within the individual beams. The remaining twelve channels are
connected to the widebeam coverage.
Sharing the 36° East orbital position with the W4 satellite, SESAT 1 contributes
to the development of international, regional and domestic services, such as
thin route telephony, corporate and specialised data services and long distance
trunk telephony. SPECIFICATIONS SATELLITE:
| Prime contractor |
NPO-PM / Alcatel Espace (payload) |
| Platform |
derived from
Express (MSO-2500) |
| Mass at launch |
2600 kg |
| Mass in orbit |
|
| Dimension |
|
| Solar array |
26.5 m span |
| Stabilization |
3-axis |
| DC power |
5600 W (full eclipse protection) |
| Design lifetime |
10 years |
SPECIFICATIONS KU BAND TRANSPONDERS:
| Main transponders |
18 |
| Backup transponders |
|
| Power |
84 W (TWTA) |
| Bandwidth |
72 MHz |
| Coverage |
fixed beam: Europe
steerable spot: currently for India |
| EIRP max |
fixed: 47 dBW
steerable: 49 dBW |
| G/T max |
+4 dB/K |
| Polarization |
linear |
| Frequencies |
10.950-11.200 GHz (6 transp.)
11.450-11.700 GHz (6 transp.)
12.500-12.750 GHz (6 transp.) |
EUTELSAT SESAT 1 FREQUENCY PLAN
click on the picture to enlarge it
Horizontal
Uplink |
Horizontal
Downlink |
Transponder |
Vertical
Downlink |
Vertical
Uplink |
Uplink
beam |
Downlink
beam |
| |
10.99167 |
B1 |
|
14.29167 |
Fixed |
Fixed |
| 14.29167 |
|
B2 |
10.99167 |
|
Fixed |
Fixed |
| |
11.07500 |
B3 |
|
14.37500 |
Fixed |
Fixed |
| 14.37500 |
|
B4 |
11.07500 |
|
Fixed |
Fixed |
| |
11.15833 |
B5 |
|
14.45833 |
Fixed |
Fixed or steerable |
| 14.45833 |
|
B6 |
11.15833 |
|
Fixed |
Fixed or steerable |
| |
|
|
|
|
|
|
| |
11.49167 |
D1 |
|
13.79167 |
Fixed |
Fixed or steerable |
| 13.79167 |
|
D2 |
11.49167 |
|
Fixed |
Fixed or steerable |
| |
11.57500 |
D3 |
|
13.87500 |
Fixed or steerable |
Fixed or steerable |
| 13.87500 |
|
D4 |
11.57500 |
|
Fixed or steerable |
Fixed or steerable |
| |
11.65833 |
D5 |
|
13.95833 |
Fixed or steerable |
Fixed |
| 13.95833 |
|
D6 |
11.65833 |
|
Fixed or steerable |
Fixed |
| |
|
|
|
|
|
|
| |
12.54167 |
F1 |
|
14.04167 |
Fixed or steerable |
Fixed |
| 14.04167 |
|
F2 |
12.54167 |
|
Fixed or steerable |
Fixed |
| |
12.62500 |
F3 |
|
14.12500 |
Fixed |
Fixed |
| 14.12500 |
|
F4 |
12.62500 |
|
Fixed |
Fixed |
| |
12.70833 |
F5 |
|
14.20833 |
Fixed |
Fixed |
| 14.20833 |
|
F6 |
12.70833 |
|
Fixed |
Fixed |
INFORMATION ABOUT
PROTON FLIGHT 274:
BACK TO THE MAIN PAGE OF SATELLITE TRACKER |
