A dataset provided by the European Space Agency

Name S1-X-XSM-2-EDR-EP
DOI 10.5270/esa-d01pwn7
Abstract See DATA_SET_DESC above
Description Data Set Overview = This data set contains CODMAC level 2 processed data for the XSM instrument onboard SMART-1. The data has been obtained durin Lunar Phase. The XSM uses the Volume set concept. The data obtained dering the whole mission is devided into three separete sets corresponding to the different mission phases, e.g. EEP, LP and EP. For details of the data available in each release, please see the RELEASE.CAT file in the CATALOG directory. This data set includes calibration, solar spectral and background data. The column # 2 in the data table i.d. flag indicates the type of spectra stored in the corresponding row. 1= calibration, 0=solar data and -1=background or noise. Processing The data is processed from the DDS packages with APIDs 1006 (science data) and 1007 (HK data). This data are accessible from the ESOC DDS server. The telemetry packets have been decoded from binary to fits formatted binary data. The fits formatted data is converted into PDS-formatted data by applying the fits2pds conversion program. No corrections are applied to the XSM data in the processing. The deleivered data table contains spectral data, HK and attitude data. Time stamps, effective area and a flag is attached also in the table. (FLAG = -1: NOISE/BACKGROUND, FLAG = 0: SOLAR SPECTRUM, FLAG = 1: CALIBRATION SPECTRUM.) Media/Format The data is delivered as binary files, compliant with the PDS standard. DESCRIPTION OF THE CONTENTS OF DATA DIRECTORY: Data directory contains all XSM data obtained during the EP, i.e. between 2005-10-01T16:34:47-2006-08-30T05:30:35. Remarks: N/A
Instrument XSM
Temporal Coverage 2005-10-01T16:34:47Z/2006-08-30T05:30:35Z
Version V1.0
Mission Description Mission Overview SMART-1 is the first of the Small Missions for Advanced Research and Technology (SMART), which are elements of ESA's Horizons 2000 plan for scientific projects. A brief description of the mission and its objectives can be found in the SMART-1 Archive Plan [S1_ARCH_PLAN_2003], and in papers by [MARINI_ET_AL_2002] and [RACCA_ET_AL_2002]. A detailed description of the mission analysis can be found in the Consolidated Report on Mission Analysis [CREMA_2001]. The SMART missions aim at testing key technologies for future cornerstone missions. The primary technological objective of SMART-1 is the flight demonstration of Solar-Electric-Primary-Propulsion (SEPP) for a scientific lunar orbiting spacecraft delivered from launch into a geostationary transfer orbit (GTO). The spacecraft was designed to operate with minimum ground intervention (e.g. one pass every 4 days). However, the use of ground stations throughout the mission was on availability basis with, on average, a pass once a day. SMART-1 was launched from Kourou at 23:14 UTC on 27th Sept 2003 as a co- passenger on an Ariane-5 launcher. The launch mass of the spacecraft was 367kg, including 82.5kg of Xenon propellant for the SEPP and 19kg instrument payload. After release into the geostationary transfer orbit (GTO) the spacecraft acquired initial attitude, autonomously deployed the solar arrays and entered a checkout phase. The GTO had the following parameters. A=24702.3km E=0.71578 Inc=6.999deg RAAN=250.965deg APER=178.246deg Perigee=7020.8km Apogee=42383.7km The first firing of the SEPP occurred at 12:20:21 UT on 30th September 2003. The escape from the Earth was performed by gradually expanding the orbit from the initial geostationary transfer orbit parameters. Continuous thrusting was required for a little over 80 days in order to pass the main radiation belts as quickly as possible, pushing the perigee out to 20,000km. After this ...
Creator Contact LAURI ALHA
Date Published 2004-09-30T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-09-30T00:00:00Z, S1-X-XSM-2-EDR-EP, V1.0. https://doi.org/10.5270/esa-d01pwn7