Data Set Overview
=================
This data set contains the data referred to
AST2 Mission Phase (Lutetia fly-by).

Data
====
Both data, scientific and housekeeping, are collected in this data
set. They referred to CODMAC Level 3.

Processing
==========
Only CODMAC Level 3 data are present in this data set

A preliminary calibration is used for level 3 data during cruise
phase when sensorhead boom is stowed, thus yielding to a poor data
quality. See ROMAP_CALIBRATION_DESC.TXT in DOCUMENT directory and
DATA_QUALITY keyword in data file labels.

Coordinate System
=================
The geometry items SC_SUN_POSITION_VECTOR, SC_TARGET_POSITION_VECTOR
and SC_TARGET_VELOCITY_VECTOR provided in the label of the data
product are relative to the Earth Mean Equator and Equinox reference
frame of J2000.
SUB_SPACECRAFT_LATITUDE, SUB_SPACECRAFT_LONGITUDE are given in the
PLANETOCENTRIC coordinate system. These parameters are computed at
time t=START_TIME. Distances are given in km, angles in degrees.

Data confidence is nominal, meaning that
                            all data have been validated by the
                            scientific team and found as expected.
                            Any exceptions are noted by the
                            DATA_QUALITY_ID.