A dataset provided by the European Space Agency

Name CH1ORB-X-C1XS-2-NPO-EDR-XSM
Mission CHANDRAYAAN-1
URL ftp://psa.esac.esa.int/pub/mirror/pub/mirror/CHANDRAYAAN-1/C1XS/CH1ORB-X-C1XS-2-NPO-EDR-XSM-V1.0
DOI https://doi.org/10.5270/esa-9psukni
Abstract See DATA_SET_DESC above
Description Data Set Overview = This data set contains CODMAC level 2 processed data for the XSM instrument onboard Chandrayaan-1. The data has been obtained during NOP. The XSM uses the Volume set concept. The data obtained dering the whole mission composes only one data set. 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 (-2=time discontinuity). Processing This data are accessible from the ISRO 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=-2: TIME DISCONTINUITY , 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 NOP, i.e. between Nov 2008 and Sep 2009. Remarks: N/A
Instrument C1XS
Temporal Coverage 2008-11-01T00:00:00Z/2009-09-01T00:00:00Z
Version V1.0
Mission Description Mission Overview Chandrayaan-1, the first Indian mission to Moon, was designed to carry out high resolution remote sensing studies of the Moon to further our understanding about its origin and evolution. Chandrayaan-1 was launched on October 22, 2008 by PSLV-C11 at 00:52 UT from SDSC, SHAR. The lift-off and dry mass break-up is as follows: Lift-off mass : 1380 kg Dry mass : 560 kg Propellant mass : 818.2 kg Pressurant mass : 2.84 kg The launch of the spacecraft was planned such that the Moon is at one of its nodes when the Spacecraft arrives there. In order to have multiple launch opportunities every month and to contain burn errors, the phasing loop strategy with multiple loops and five Earth bound maneuvers is adopted. The injection parameters are as follows: Semimajor axis : 17971.73 km Eccentricity : 0.63094 Inclination : 17.9112 deg Perigee height : 254.457 km Apogee height : 22932.741 km The details of five Earth bound manuevers, lunar insertion manuever and circularization manuevers are given below: ..-------------------------------------------------------------------------------------. | BURN | CENTRAL BODY | Perigee No | deltaV(m/s) | Dur (S) | Post Manuever orbit | | | | | | | prg X apg (km) | ..--------|--------------|-------------|-----------------------------------------------. | | | | | | | | EBN #1 | Earth | 4 | 344.43 | | 299.2 X 37908.1 | | | | | | | | | EBN #2 | Earth | 8 | 328.14 | 912.36 | 336.3 X 74715.6 | | | | | | | | | EBN #3 | Earth | 9 | 221.69 | 567.73 | 347.8 X 165015.1 | | | | | | | | | EBN #4 | Earth | 10 | 77.17 | 192.18 | 459.4 X 266612.9 | | | | | | | | | EBN #5 | Earth | 11 | 60.70 | 147.68 | 972.8 X 379859.2 | | | | | | | | | TCM | Earth | | 0.82 | 5.59 | 802.8 X 378499.2 | ..--------|--------------|-------------|-----------------------------------------------. | | | | | | | | LOI | Moon | - | 366.96 | 817.07 | 507.9 X 7510.1 | | | | | | | | | LBN #1 | Moon | - | 26...
Creator Contact LAURI ALHA
Date Published 2009-10-06
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-10-06, CH1ORB-X-C1XS-2-NPO-EDR-XSM, V1.0. https://doi.org/10.5270/esa-9psukni