PDS_VERSION_ID = PDS3 LABEL_REVISION_NOTE = "V1.0 2019-04-05 A. Rotundi: first release " RECORD_TYPE = STREAM OBJECT = TEXT NOTE = "Rosetta GIADA High Level data products" PUBLICATION_DATE = 2019-04-05 END_OBJECT = TEXT END Rosetta GIADA Level 5 DATA 1. Introduction The Archive contains the high level products obtained by the GIADA data collected during the whole Scientific Phase of the Rosetta Mission. The data cover the period of time from the 1 August 2014 until 31 March 2016. The present DataSet collects the high level product obtained by elaboration GIADA data contained in the LEVEL 3 dataset from PRL to EXT1 available on the PSA. GIADA in flight software configuration is 2.3 plus three additional patches (one more patch is used to update the context file). The data set organisation conforms to the Planetary Data System (PDS) Standards, Version 3.8, Jet Propulsion Laboratory (JPL) document JPL D-7669, according to the structure agreed with ESA and described in RO_GIA_IAPSUPA_IF_013_I1 (reported in DOCUMENTation dir). A general description of GIADA instrument is in RO_GIA_IAPSUPA_IF_012_I2. See also GIA_DATA_UM_V01 and DELLACORTEETAL2014 reported in DOCUMENTation dir for evaluations on GIADA behaviour during the mission. 2. File Formats See Sections 3 and 4 of RO_GIA_IAPSUPA_IF_012_I2 (reported in DOCUMENT dir). 3. Data Set Contents The files on this volume are organized in a directory tree as described in RO_GIA_IAPSUPA_IF_012_I2 (reported in DOCUMENTation dir). We recall here that GIADA is formed by 3 detection devices: GDS (Grain Detection System), IS (Impact Sensor) and MBS (Micro Balance Sensors), guided and controlled by ME (Main Electronics). We recall that GIADA may operate in four different operative modes. These modes can be selected autonomously by the S/C control system, as well as by means of ground TCs. Different operational modes correspond to different active subsystems, so allowing to measure different quantities, as it follows: Mode Name Active subsystems (nominal) Measured quantities SAFE ME None NORMAL ME, GDS, IS, 5 MBSs Dust flux and fluence Grain Scattering properties Momentum of single grains Velocity of grains Mass of single grains FLUX ME, 5 MBSs Dust flux and fluence COVER ME, Cover or Frangibolt None In each Mode different sensors may also be switched ON/OFF separately by proper TC. While scientific data are acquired in NORMAL or FLUX Modes only, Housekeeping data are acquired in all Modes. We recall that GIADA is a "dust event driven" experiment, so that no scientific data are collected until arrival to the comet. Therefore, during Rosetta Cruise Phase no scientific event is recorded. Actually, some "scientific events" are recorded by GDS and IS, but they are not real dust events and must be neglected. In-flight calibration and housekeeping data are collected and reported in the data set. They are relevant to follow the behaviour and health status of the GIADA experiment and must be used in comparison with data obtained during on ground and other in-flight tests (see other relevant data sets). Under the DATA sub-directory, different sub-sub-directories are present related to different periods: PRELANDING_BOUND_ORB_2014_08_06: directory containing high level data maps obtained with data collected by the IS and GDS giada subsystems during the period 2014-08-04 to 2015-02-4. FLYBYS_DAY_SIDE_2015_02_05: directory containing high level data maps obtained with data collected by the IS and GDS giada subsystems during the period 2015-02-05 to 2015-03-28. POST_EQUINOX_2015_04_14: directory containing high level data maps obtained with data collected by the IS and GDS giada subsystems during the period 2015-04-14 to 2015-06-30. PERIHELION_2015_06_01: directory containing high level data maps obtained with data collected by the IS and GDS giada subsystems during the period 2015-07-01 to 2015-10-31. POST_PERIHELION_2015_11_01: directory containing high level data maps obtained with data collected by the IS and GDS giada subsystems during the period 2015-07-01 to 2015-10-31. 5. Whom to Contact for Information For questions concerning this data volume, data products, documentation and GIADA in general: Alessandra Rotundi Universita' "Parthenope" Via del Fosso del Cavaliere 100, 00133 Roma (Italy)" Electronic mail address: rotundi@uniparthenope.it Vincenzo Della Corte INAF - INST. DI ASTROFISICA E PLANETOLOGIA SPAZIALI" Via del Fosso del Cavaliere 100, 00133 Roma (Italy)" Electronic mail address: vincenzo.dellacorte@inaf.it