soir operations and archiving
DESCRIPTION
SOIR operations and archiving. Bojan Ristic ( [email protected] ) and the SOIR team Belgian Institute for Space Aeronomy (BIRA-IASB). SOIR Characteristics and Performances. http://www.esa.int/esa-mmg/mmg.pl?b=b&type=A&mission=Venus%20Express&single=y&start=8. - PowerPoint PPT PresentationTRANSCRIPT
Bojan Ristic ([email protected]) and the SOIR team
Belgian Institute for Space Aeronomy (BIRA-IASB)
SOIR operations and archiving
SOIR Characteristics and Performances
Value or range Units
Wavelength range 2.2 to 4.3 µm
Wavenumber range 2353 to 4310 cm-1
Spectral sampling interval (1 pixel)
0.1 cm-1
Instrument Line Profile 0.2 cm-1
Corresponding resolving power [/=/] 23200 to 43100
FOV in spectral direction 2 arc minutes
FOV in spatial direction 30 arc minutes
Entrance aperture diameter 20 mm
Mass 6.5 kg
Size 414 x 254 x210 mm3
http://www.esa.int/esa-mmg/mmg.pl?b=b&type=A&mission=Venus%20Express&single=y&start=8
• Self calibrated measurements: transmittances obtained by dividing measured spectra by full sun spectra
• Altitude range probed on Venus: 65km to 160km
From Sun
Venus
VEX
Atmosphere
Orbit 232 – Order 129
Cloud deck
Solar Occultation Technique
-90
-60
-30
0
30
60
90
0 100 200 300
Longitude (°)
Lat
itu
de
(°)
-90
-60
-30
0
30
60
90
0 3 6 9 12 15 18 21 24Local Solar Time
Lat
itu
de
(°)
Spatial Coverage of the Measurements