A dataset provided by the European Space Agency

Name HP-SSA-HK-2-3
URL ftp://npsa01.esac.esa.int/pub/mirror/CASSINI-HUYGENS/HUYGENS_HK/HP-SSA-HK-2-3-V1.0
DOI 10.5270/esa-fmu3u1k
Abstract N/A
Description Data Set Overview = This data set contains the engineering data of the Huygens probe, measured during its mission on 14 January 2005. The total number of engineering parameters is ~ 1600. It was decided to archive in the PDS only a selection of the most useful parameters (217). However, all the data are stored in their original format in the EXTRAS directory. Data Set Identifier = The 'DATA_SET_ID' is a unique alphanumeric identifier for the data sets. It looks something like: XX-Y-ZZ-U-WWW Acronym | Description | Example -------------------------------------------------------------XX | Instrument Host ID | HP -------------------------------------------------------------Y | Target ID | SSA (for Saturn satellite) -------------------------------------------------------------ZZ | Instrument ID | HK (for HouseKeeping) -------------------------------------------------------------U | Data level (here | 2-3 | CODMAC levels are used) | --------------------------------------------------------WWW | Version number | V1.0 Documents = The DOCUMENT directory contains the files that provide documentation and supplementary information to assist in understanding and using the data products. Structure of DATA Directory = Below /DATA/ the directories are named after the Huygens probe subsystems. They are: CDMS: Command and Data Management Subsystems SASW: Support Avionics Software POSW: Probe Onboard Software PDRS: Probe Data Relay Subsystem EPSS: Electrical Power Subsystem EXP: Experiments A specific folder for the spin is accessible: SPIN Then, subdirectories are named after specific subsubsystems or payload: CDMUB: Command and Data Management Unit Chain B CASU: Central Acceleration Sensor Unit RASU: Radial Acceleration Sensor Unit PSAB: Probe Support Avionics Chain B DISR: Descent Imager Spectral Radiometer HASI: Huygens Atmospheric Structure Instrument ACP: Aerosol...
Instrument HUYGENS_HK
Temporal Coverage 2005-01-14T09:04:58Z/2005-01-14T12:41:29Z
Version V1.0
Mission Description The majority of the text in this file was extracted from the Cassini Mission Plan Document, D. Seal, 2003. [JPLD-5564] The Cassini spacecraft, including the Huygens Probe, was launched on 15 October 1997 using a Titan IV/B launch vehicle with Solid Rocket Motor Upgrade (SRMU) strap-ons and a Centaur upper stage. The spacecraft used a 6.7-year Venus-Venus-Earth-Jupiter Gravity Assist (VVEJGA) trajectory to Saturn, during which cruise observations were conducted to check out, calibrate, and maintain the instruments as well as to perform limited science. After Saturn Orbit Insertion (SOI) (1 July 2004), the Huygens Probe separated and, on the third encounter with Titan, entered the satellite's atmosphere to make in situ measurements during an approximately 150 minute descent (14 January 2005). The Orbiter continued a tour of the Saturn system until mid-2008 collecting data on the planet and its satellites, rings, and environment. The Cassini Orbiter (CO) was a three-axis stabilized spacecraft equipped with one high gain antenna (HGA) and two low gain antennas (LGAs), three Radioisotope Thermoelectric Generators (RTGs) for power, main engines, attitude thrusters, and reaction wheels. It carried twelve orbiter instruments designed to carry out 27 diverse science investigations. The Huygens Probe (HP) was equipped with six instruments designed to study the atmosphere and surface of Titan. It entered the upper atmosphere protected by a heat shield, then deployed parachutes to descend slowly to the surface from an altitude of about 200 km. The instruments, with acronym and Principal Investigator (PI) or Team Leader (TL), are summarized below: Instrument Acronym PI/TL ----------------------------------------------- -----------Orbiter: Cassini Plasma Spectrometer CAPS Young Cosmic Dust Analyzer CDA Srama Composite Infrared Spectrometer CIRS Flasar Ion and Neutral Mass Spectrometer INMS Waite Imaging Science Subsystem ISS Porco...
Date Published 2006-07-17T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2006-07-17T00:00:00Z, HP-SSA-HK-2-3, V1.0. https://doi.org/10.5270/esa-fmu3u1k