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| = The Lageos measurement Satellites = | = The Lageos measurement satellites = |
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| Two passive satellites are used for laser geodesy. These are 60 centimeter, 400 kilogram solid metal spheres covered with retroreflectors, used for precisely measuring the geometry of the Earth's surface and the Earth's gravitational field. |
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| m288 is 1200km above LAGEOS 1. Server sky orbits should stay above LAGEOS! | |
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| === LAGEOS === Two passive satellites are used for laser geodesy. Server sky orbits should stay above these! |
These satellites are interesting because their orbits are very precisely defined, and we can use them to verify both our orbital math and learn about drag at those extreme altitudes. |
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LAGEOS: |
References: |
The Lageos measurement satellites
Two passive satellites are used for laser geodesy. These are 60 centimeter, 400 kilogram solid metal spheres covered with retroreflectors, used for precisely measuring the geometry of the Earth's surface and the Earth's gravitational field.
m288 is 1200km above LAGEOS 1. Server sky orbits should stay above LAGEOS!
These satellites are interesting because their orbits are very precisely defined, and we can use them to verify both our orbital math and learn about drag at those extreme altitudes.
|
LAGEOS 1 |
LAGEOS 2 |
- nyo |
||
NORAD ID |
8820 |
22195 |
Int'l Code |
1976-039A |
1992-070B |
Perigee |
5,845.9 km |
5,622.3 km |
Apogee |
5,954.4 km |
5,959.4 km |
Inclination |
109.8° |
52.6° |
Period |
225.5 min |
222.5 min |
Semi major axis |
12,271.2 km |
12,161.9 km |
Launch date |
May 4, 1976 |
October 22, 1992 |
Source |
United States |
Italy |
- JPL |
||
mass |
411kg |
405kg |
diameter |
0.6m |
0.6m |
eccentricity |
0.0045 |
|
- NSSDC |
||
periapsis |
5837.0 km |
5900.0 km |
apoapsis |
5946.0 km |
5900.0 km |
period |
225.41000366210938 min |
225.0 min |
Inclination |
109.80000305175781° |
54.0° |
eccentricity |
0.00443999981507659 |
0.009999999776482582 |
- springerlink |
||
decay |
1.1mm/day 1.5V |
|
- Innovateus |
||
mass |
406.965 |
405.38 |
|
||
spin |
0.61s |
0.906s |
LAGEOS1 TLE:
- 1 08820U 76039A 11094.82079485 +.00000016 +00000-0 +10000-3 0 01141
- 2 08820 109.8462 077.3556 0044210 050.5232 309.9115 06.38664784558975
LAGEOS2 TLE:
- 1 22195U 92070B 11095.53472161 -.00000009 00000-0 10000-3 0 3192
- 2 22195 052.6462 175.4139 0138581 279.8295 078.6642 06.47294193436229
References: