Data Set Information
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| DATA_SET_NAME |
LCROSS SUN 2ND NEAR IR SPECTROMETER FLASH 3 CAL V1.0
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| DATA_SET_ID |
LCROSS-X-NSP2-FL-3-CAL-V1.0
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| NSSDC_DATA_SET_ID |
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| DATA_SET_TERSE_DESCRIPTION |
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| DATA_SET_DESCRIPTION |
Data Set Overview : This data set contains calibrated flash-mode spectra from Near Infrared Spectrometer #2 on the LCROSS spacecraft. During the final moments of the LCROSS mission, NSP2 looked toward the sun to capture absorption spectra as the spacecraft passed through the ejecta and vapor cloud left by the centaur impact. Unlike the other spectra and images, flash mode data is in table files containing multiple spectra taken at 72 Hz (in this dataset). There is one of these table files per payload data collection period where NSP2 flash mode was used. This dataset also contains table files holding housekeeping data. Related Data Sets : This dataset contains calibrated spectra. The NSP2_FL_RAW dataset contains the corresponding uncalibrated spectra. That dataset is described in NSP2_FL_RAW_DS.CAT in this directory. NSP2_RAW_DS.CAT and NSP2_CAL_DS.CAT describe data taken from this spectrometer in its high-resolution 'hadamard' mode. Parameters : Science ------- The data collection period is 72 Hz. Housekeeping ------------ Instrument temperature at the data collection time is reported in the label file under: INSTRUMENT_TEMPERATURE and INSTRUMENT_TEMPERATURE_COUNT in degrees Centigrade and raw counts, respectively. This is a single telemetry point most representative of the instrument chassis temperature. Processing : Each near-infrared spectra was digitally transmitted from the spectrometer to the spacecraft in its raw format, inserted into a packet uncompressed and downlinked in telemetry. On the ground, the spectra were extracted from telemetry, and they were converted to CSV format. For each data collection period, the LCROSS Make Archive program read these files, applied a per-mask calibration function and wrote them as a PDS-formatted table (.TAB) and label (.LBL) file. Data : The files in this dataset are PDS-formatted, ascii, tables with detached label files. Coordinate System : TBD Software : The GSEOS Version used to generate these spectra is GSEOS 5.2.407 (Feb 25, 2008), Python 2.2.3 (#37, Nov 28, 2003, 04:20:20), Project Version 6.1.064. The LCROSS.py Python script used with GSEOS is Version Jun 11, 2008. The LCROSS Report Generator used on GSEOS created CCSDS.dat files is version 114. The version of Satellite Toolkit used to prepare geometric information for the labels is 8.1.3. The LCROSS Make Archive program used to assemble the PDS-formatted submission is dated 03/14/2010.
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| DATA_SET_RELEASE_DATE |
2010-03-17T00:00:00.000Z
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| START_TIME |
2009-06-20T02:00:00.000Z
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| STOP_TIME |
2009-10-09T11:36:00.000Z
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| MISSION_NAME |
LUNAR CRATER OBSERVATION AND SENSING SATELLITE
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| MISSION_START_DATE |
2009-04-27T12:00:00.000Z
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| MISSION_STOP_DATE |
2009-10-09T12:00:00.000Z
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| TARGET_NAME |
SUN
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| TARGET_TYPE |
SUN
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| INSTRUMENT_HOST_ID |
LCROSS
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| INSTRUMENT_NAME |
NEAR INFRARED SPECTROMETER 2
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| INSTRUMENT_ID |
NSP2
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| INSTRUMENT_TYPE |
INFRARED SPECTROMETER
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| NODE_NAME |
Geosciences
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| ARCHIVE_STATUS |
LOCALLY_ARCHIVED
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| CONFIDENCE_LEVEL_NOTE |
Confidence Level Overview : The confidence level is unspecified. Review : This LCROSS data set was reviewed internally by the LCROSS science team before delivery to PDS. This data set has passed a PDS peer review. Data Coverage and Quality : This data path from spectrometer to PDS involved no lossy compression and was fully error corrected. No NSP2 packets were lost in downlink. No NSP2 spectra were saturated. Limitations : TBD Data Compression : No data compression was used in the datapath from the detector to the formatted files ready for submission to the PDS.
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| CITATION_DESCRIPTION |
Colaprete, A., Lunar Crater Observation and Sensing Satellite Near Infrared Spectrometer 1 Flash Mode Calibrated Data V1.0, LCROSS-X-NSP2-FL-3-CAL-V1.0, NASA Planetary Data System, 2010.
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| ABSTRACT_TEXT |
Calibrated flash mode spectra from the Near Infrared Spectrometer 1 (NSP2) aboard the Lunar Crater Observation and Sensing Satellite (LCROSS).
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| PRODUCER_FULL_NAME |
ANTHONY COLAPRETE
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| SEARCH/ACCESS DATA |
LCROSS Analysts Notebook
LCROSS FTP Resource
GEOSCIENCES WEB SERVICES
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