ISM: Mars

ASCraeus session

Medium resolution session (~25 km / pixel) from circular orbit (altitude of Phobos).
Ascraeus Mons, Tharsis, Lunae Planum.

Name	Date	Spectra	Window size	Estimated local time	Phase angle	Solar Meridian	Ls	Mars-Sun dist (au)
ASCraeus	21/03	2999	120 x 25	10:20-14:50	13.3°-19.7°	115°	15.6°	1.596

Mean distance (km)	Eccentricity	Inclination (°)	W (°)	w (°)	Time & day of pericenter
9675.00	0.003018	1.0590	88.647	116.354	6:02:25, 21/3/1989

Dark current file: fond2103.dg3
Gain = 3
Focal plane temperature = -77.0 °C
Shift in coordinates: Dlong = 0.0°, Dlat = 0.9°
This is the only Mars session acquired in gain 3. The gain coefficients are derived from this session, and could be in error at short wavelengths due to a different amount of atmospheric scaterring in the data.
Saturation and non-linearities occur in several channels in the short wavelength range, for even channels (see DocISM.pdf). The result of the usual data calibration is provided in ASCEVEN.CA0. Interpolated values for even channels are provided in ASCEVEN.CAL and ASCEVEN.ATM.

	Telemetry file	Edited data	Calibrated data	Atmosphere removed	Coordinates	Altimetry file
Data file	MARS2103.DAT	ASCEVEN.EDT ASCODD.EDT	ASCEVEN.CA0 ASCEVEN.CAL ASCODD.CAL	ASCEVEN.ATM ASCODD.ATM	ASC_COOR.DAT	ASCALT.DAT
Label	RAW_DATA.LBL	ASC_EDT.LBL	ASC_CAL.LBL	ASC_ATM.LBL	MAR_COOR.LBL	TOPO.LBL

Dernière mise à jour : 11 mai 2001
Adresse : http://www.ias.u-psud.fr/ism/