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 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 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. See the CALIBRATION_COOKBOOK.PDF in the DOCUMENT
    directory for more information.
 
  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.

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
  ===========
 
    Although these data have been calibrated and are in physical
    units, the wavelength scale is unique to each individial
    file. Thus, care must be taken when comparing one data file to
    another. The Alice team recommends using the reformatted,
    calibrated CODMAC level 4 data products, which solves this
    problem.