Orbitography Beacons
The same orbitography / reference beacon should not be used for both Doppler location accuracy assessment and orbit updates.
Cospas-Sarsat System Orbitography Beacons
|
Identification |
Lat. / Long. |
Location |
Elevation (metres) |
Time Interval (secs) |
Transmit Frequency (MHz) |
|
DENMARK |
77°27.885′ N |
near Thule |
36.59 |
30 |
406.021870 |
|
FRANCE |
43°33.60′ N |
Toulouse |
214.27 |
30 |
406.022000 |
|
FRANCE * |
43°33.60′ N |
Toulouse |
214.27 |
30 |
406.034000 |
|
NORWAY |
78°13.739′ N |
Longyearbyen |
502.4 |
30 |
406.022001 |
|
USA |
77°50.762′ S |
McMurdo Station, Antarctica |
170.962 |
30 |
406.022000 |
Notes:
* This second French beacon has all the characteristics of an orbitography beacon, except the transmit frequency of 406.034 MHz, set to avoid interference with the Sarsat time calibration beacon. The beacon will be equipped by default with an LHCP antenna to support MEOSAR applications with the DASS proof-of-concept constellation.
** Indicates that this location was provided in the International Earth Rotation System (IERS) Terrestrial Reference Frame or ITRF-93. Other locations are provided in the Bureau International de l’Heure (BIH) Geodetic Reference System.