RO-CAL-E-ALICE-3-EAR2

Required Reading The format of all Alice data are described in detail by the EAICD document located in the /DOCUMENT directory. In addition, the Rosetta Alice logbook file, RA_LOGBOOK_NNN.ASC, also located in the DOCUMENT directory provides observational details such as observation target, commanded exposure time, etc., for all Alice data. The Alice team strongly recommends reading this documentation before using the data. Data Set Overview This data set contains calibrated data acquired by the Rosetta Orbiter ALICE UV Spectrometer during the first earth swingby phase of the Rosetta mission, which occurred October 17, 2004 to April 4, 2005. Observations of calibration targets, the earth and the moon were made during this mission phase. A detailed listing of all Alice observations is given in the observation log file located in the DOCUMENT directory. Processing The data in this data set are calibrated, CODMAC Level 3 data. As such, corrections for detector dead time, dark counts, flatfield, and effective area have generally been applied. The primary FITS header contains a list of which corrections have been applied to that file. There are some significant discrepancies in the absolute calibration that will be corrected in a subsequent data delivery when the calibration is better understood. Data The data are in FITS format and text format. Each FITS file has a detached PDS label so that they can be read either by FITS or PDS tools. A detailed description of the data format is given in the ALICE EAICD document located in the DOCUMENT directory of this data set. Ancillary Data No ancillary data included in this data set. 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 frame of J2000. SUB_ truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]