HP-SSA-ACP-3-DESCENT

Data Set Overview This data set is composed of data produced during the descent to Titan on January 14 2005 from the ACP instrument (Engineering data) and also from the GCMS instrument (Science data) which analyses the gaseous products from ACP. Only the channel B data is archived (no data has been recovered by Cassini on channel A). The raw data in binary format is not archived in this data set. It has been processed to calibrated (engineering) data by means of the transfer functions described in the ACP Software User Manual. This calibrated data is presented hereafter. The ACP engineering data: It includes all the temperatures, pressure, references voltages, DC/DC converter voltages, mechanisms position sensors, and is sorted in the four following data files : 1)ACP_OVEN_V1_0.LBL/ACP_OVEN_V1_0.TAB: Oven group parameters which monitor the heating and transfer phase performance including (columns title): UTC time, ACP internal sampling time, oven temperature, oven wall temperature,oven pressure, and electrovalves V1, V2, VT status. 2)ACP_PUMP_V1_0.LBL/ACP_PUMP_V1_0.TAB: Pump group parameters which monitor the pump performance including (columns title): UTC time, ACP internal sampling time, pump temperature, pump current, pump speed. 3)ACP_TEMP_V1_0.LBL/ACP_TEMP_V1_0.TAB: Temperatures group parameters including (columns title): UTC time, ACP internal sampling time, temperatures; electronics, base plate, cold junction, electrovalves VT & V2. 4)ACP_VOLT_V1_0.LBL/ACP_VOLT_V1_0.TAB: Voltages group parameters including (columns title): UTC time, ACP internal sampling time, DC/DC converter voltages (+ 5V , +15V , 15V), calibration & reference voltages (Rcal, RO, TCgnd, Vref1/2/3). The documentation includes the ACP EAICD, The GCMS EAICD, the ACP on board software user manual, the ACP & GCMS ESA SP1177 publications, and the ACP & GCMS Nature publications. The ACP science data : The GCMS analyses samples f truncated!, Please [truncated!, Please see actual data for full text]