SEST
Parameters
(October 1990)
Geographical Position
|
Longitude
|
Latitude
|
Altitude
|
70° 44' 04" (W) |
-29° 15' 34" |
2300 |
The Telescope
|
Diameter |
Surface Accuracy |
Pointing Accuracy |
|
15 Meters |
70 µm (rms) |
3" rms in Az and El |
Half Power Beamwidth (FWHM)
|
86 GHz |
115 GHz |
147 GHz |
230 GHz |
346 GHz |
|
57" |
45" |
34" |
23" |
15" |
Main Beam Efficiency
|
86 GHz |
115 GHz |
147 GHz |
230 GHz |
346 GHz |
|
0.75 |
0.70 |
0.66 |
0.50 |
0.25 |
Aperture Efficiency
|
86 GHz |
115 GHz |
147 GHz |
230 GHz |
346 GHz |
|
0.62 (25 Jy/K) |
0.58 (27 Jy/K) |
0.53 (30 Jy/K) |
0.38 (41 Jy/K) |
0.16 (98 Jy/K) |
Moon Efficiency
|
100 GHz |
230 GHz |
|
0.90 |
0.90 |
Misc Information
|
Maximum Operational Wind |
Sun Constraint |
|
14 m/s |
50° |
