Data Set Information
DATA_SET_NAME ROSETTA-ORBITER CAL ALICE 2 CR5 V1.0
DATA_SET_ID RO-CAL-ALICE-2-CR5-V1.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION 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 uncalibrated data acquired by the Rosetta Orbiter ALICE UV Spectrometer during the Cruise 5 mission phase, which took place between 2009-12-14 and 2010-06-06, and includes Payload Checkout #12. A detailed listing of all Alice observations is given in the observation log file located in the DOCUMENT directory. The following Alice observations were made during the period covered by this data set: # 2010-02-04: Flight Software v2.07 upload to EEPROMs 0, 1, 2# (already loaded to EEPROM3 during PC10) # 2010-03-22: Parameter refresh and context save# (necessary because Alice context was lost on s/c when ESA did a SSMM refresh) # Payload Checkout #12 (PC12)# 2010 April 22 - May 15# Alice activity overview:# * 2010 Apr 22 08:00 - AL01 (passive checkout; 2 hr)# * 2010 Apr 22 10:00 - AL02A (initial decontamination; 25 hr, 22hr heater + 3hr cooldown)# * 2010 Apr 23 17:40 - AL03C (Cal Star, Narrow Center [HD 43153]; 4 hr)# * 2010 Apr 23 22:40 - AL03B (Cal Star, Narrow Center [zet Cas]; 1 hr)# * 2010 Apr 24 00:40 - AL11 (solar stray light cal; 14 hr 05 min)# * 2010 Apr 28 00:00 - AL10A (upset frequency test [EEPROM_0]; 24 hr)# * 2010 Apr 30 20:00 - AL03A (Cal Star, Narrow Center [Vega]; 1 hr)# * 2010 Apr 30 21:15 - AL12 (boresight cal, cross-slit scan [Vega]; 1 hr)# * 2010 Apr 30 22:40 - AL09A/B/C (alignment with OSIRIS [Vega]; 4 hr 6 min)# * 2010 May 02 11:30 - AL10B (upset frequency test [EEPROM_1]; 24 hr)# * 2010 May 05 00:00 - AL10C (upset frequency test [EEPROM_2]; 24 hr)# * 2010 May 06 00:00 - AL10D (upset frequency test [EEPROM_3]; 24 hr)# * 2010 May 08 21:00 - AL03D (Cal Star, Narrow Center [G191-B2B]; 12hr)# * 2010 May 13 22:20 - ALIT01 (interference test with ROSINA; 1 hr 35 min)# * 2010 May 14 00:00 - AL02B (final decontamination; 25 hr, 22hr heater + 3hr cooldown)# Processing : The data in this data set are uncalibrated, CODMAC Level 2 data. As such, corrections for detector dead time, dark counts, flatfield, and effective area have not been applied. The primary FITS header contains a list of which corrections have been applied to that file. 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_SPACECRAFT_LATITUDE, SUB_SPACECRAFT_LONGITUDE are given in the PLANETOGRAPHIC coordinate system. These parameters are computed at time t:START_TIME. Distances are given in km, angles in degrees. Software : All FITS readers should be able to successfully read the data.
DATA_SET_RELEASE_DATE 2010-12-17T00:00:00.000Z
START_TIME 2010-02-04T11:00:41.785Z
STOP_TIME 2010-05-15T01:00:31.337Z
MISSION_NAME INTERNATIONAL ROSETTA MISSION
MISSION_START_DATE 1995-03-01T12:00:00.000Z
MISSION_STOP_DATE N/A (ongoing)
TARGET_NAME CALIBRATION
TARGET_TYPE CALIBRATION
INSTRUMENT_HOST_ID RO
INSTRUMENT_NAME ALICE
INSTRUMENT_ID ALICE
INSTRUMENT_TYPE ULTRAVIOLET SPECTROMETER
NODE_NAME Small Bodies
ARCHIVE_STATUS IN_LIEN_RESOLUTION
CONFIDENCE_LEVEL_NOTE Confidence Level Overview : Data confidence is nominal, meaning that all data have been validated by the Alice team and found as expected. Any exceptions are noted by the DATA_QUALITY field in the label files. Review : Data Coverage and Quality : Data quality is good unless otherwise noted by the DATA_QUALITY keyword. Limitations : These data have not been calibrated and are in instrumental units
CITATION_DESCRIPTION Stern, S. A., et al., ROSETTA-ORBITER CAL ALICE 2 CR5 V1.0 RO-CAL-ALICE-2-CR5-V1.0, NASA Planetary Data System, 2010.
ABSTRACT_TEXT This data set contains CODMAC level 2 data acquired by the Rosetta Orbiter ALICE UV Spectrometer during the Cruise 5 mission phase, which took place between 2009-12-14 and 2010-06-06, and includes Payload Checkout #12.
PRODUCER_FULL_NAME ANDREW J. STEFFL
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