
Envisat-1
Center of Mass Information:
Envisat center-of-mass information since launch (from ftp://ftp.cls.fr/pub/ids/satellites/macromodels/en1mod.pdf) (values define COM in spacecraft coordinate system):
X(m) | Y(m) | Z(m) | ||
CGMASS | 2009001 20301 0. | -4.365 | -0.002 | -0.039 |
CGMASS | 2009001 20308 0. | -3.856 | -0.008 | +0.003 |
CGMASS | 2009001 20509 0. | -3.857 | -0.008 | +0.003 |
CGMASS | 2009001 20706 0. | -3.857 | -0.008 | +0.003 |
CGMASS | 2009001 20828 0. | -3.857 | -0.008 | +0.003 |
CGMASS | 2009001 20911 0. | -3.858 | -0.008 | +0.003 |
CGMASS | 2009001 20912 0. | -3.858 | -0.008 | +0.003 |
CGMASS | 2009001 20927 0. | -3.858 | -0.008 | +0.003 |
CGMASS | 2009001 30930 0. | -3.862 | -0.009 | +0.003 |
CGMASS | 2009001 60930 0. | -3.862 | -0.009 | +0.003 |
SLR array offset from the satellite coordinate origin:
X(m) | Y(m) | Z(m) | ||||
OFFSET | 5 | 2009001 | 563909774.4 | -4.920 | +1.350 | -1.180 |
Envisat observation correction values:
(m) | |||
OBSCOR | 512009001 | 51 | -0.0512 |
From ftp://ftp.cls.fr/pub/ids/satellites/macromodels/en1mod.txt: Base of each reflector is not at the LLR reference point. The distance is 53.7 mm. Therefore, the correction to add to the measurements is azimuth dependent, between 48.7 and 53.7 mm.
Other CoM references:
- Envisat center-of-mass information since launch (IDS): ftp://ftp.cls.fr/pub/ids/satellites/macromodels/en1mod.pdf
- Envisat nominal attitude law (IDS): ftp://ftp.cls.fr/pub/ids/satellites/en1att.txt
- Envisat mass history: http://fdsa.esoc.esa.de/envisat/mass.env
- Envisat mass history (IDS): ftp://ftp.cls.fr/pub/ids/satellites/en1mass.txt
- Envisat maneuver history: http://fdsa.esoc.esa.de/envisat/ENVmano.html
- Envisat maneuver history (IDS): ftp://ftp.cls.fr/pub/ids/satellites/en1man.txt