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Optical Communications Ground Receivers (view source)
Revision as of 03:01, 19 April 2016
, 03:01, 19 April 2016→LLST Downlink Margins
[[File:LLST_Ground_Stations.jpg|frame|right]]
=Lunar Lasercom Ground Terminal=
=Lunar Lasercom Ground Terminal=
==LLST Downlink Margins==
==LLST Downlink Margins==
Minimum irradiation above atmosphere: 1.66 nW/m2
{|
Minimum signal power: -215 dB-W
|Minimum irradiation above atmosphere:
Signal power on detector: -98.2 dB-W
|1.66
Mean background photon flux: 5.18 Mph/s
|nW/m2
Mean photon flux: 140 Mph/s
|-
Link margin: -3 dB
|Minimum signal power:
| -215
|dB-W
|-
|Signal power on detector:
| -98.2
|dB-W
|-
|Mean background photon flux:
|5.18
|Mph/s
|-
|Mean photon flux:
|140
|Mph/s
|-
|Link margin:
| -3
|dB
|}
==Use for OPALS==
==Use for OPALS==
The Lunar Lasercom Optical Ground System (OGS) is another auxiliary ground station for the LLST, located on Tenerife and operated by ESA. The minimum downlink irradiance at the border of the atmosphere is specified at 0.17 nW/m<sup>2</sup>. It does things.
The Lunar Lasercom Optical Ground System (OGS) is another auxiliary ground station for the LLST, located on Tenerife and operated by ESA. The minimum downlink irradiance at the border of the atmosphere is specified at 0.17 nW/m<sup>2</sup>. It does things.
[[Category:Optical Communications]]
[[Category:Satellites]] [[Category:Optical Communications]]