Data Set Information
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| DATA_SET_NAME |
LRO MOON MINI-RF 4 CALIBRATED DATA RECORD V1.0
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| DATA_SET_ID |
LRO-L-MRFLRO-4-CDR-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 : The Mini-RF Calibrated Data Archive is a time-ordered collection of calibrated Level 1 SAR images collected by the Mini-RF instrument during the LRO mission to the Moon. They also contain stokes parameters files, polarization ratio files, and a browse image. Please see documentation in the DOCUMENT directory for additional information on the data files and their format. Parameters : See individual SIS documents, which are located in the DOCUMENT directory, for detailed descriptions of each file contained in this data archive. Processing : The POC produces Level 1 SAR CDRs by ingesting the Level 0 EDRs and associated Level 0 ancillary files into the SAR processor (Level 0 data are intermediate products generated from raw (PDR) products. Level 0 data are not archived in PDS.). Calibration is applied. A full PDS label accompanies each data file and gives a detailed description of the content and format. Data : The Level 1 CDRs are SAR images in range and azimuth orientation with pixel values in beta naught, which have been radiometrically and polarmetrically calibrated. Each cross-product image file contains simple lines of pixels. Each pixel consists of four 4-byte floating point numbers for a total of 16 bytes. The first two floating point numbers are the image intensity values for the horizontal (H) and vertical (V) channel receive. The second two numbers are the real and imaginary parts of the single complex number which gives the cross power intensity image between the H & V receive. H & V represent the complex amplitudes of the horizontal and vertically polarized backscatter respectively. An '*' represents a complex conjugate of H or V. The Level 1 products are the lowest level usable science data products. These data are stored in the DATA/SAR//LEVEL1 directory on archival volumes. File names are described in MRFLRO_DP_SIS.PDF. Ancillary Data : Each science product is accompanied by a text metadata file that contains the parameters that describe the state the instrument was in at the time of data collection and location and timing information about the data set. This file is referenced in the PDS label associated with the science data product. Calibration Data : Calibration files produced by the Vexcel(TM) CalPro processor are included with the Level 1 data set. Consult the Mini-RF Calibration Plan included in the DOCUMENT directory of this archive and the MRF_INST.CAT file for details. Coordinate System : Level 1 data products are not dependent on definition of a coordinate system. Software : No software is included with this archival data set. Media/Format : These products are delivered on a hard-drive or by ftp and not on a specific formatted medium.
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| DATA_SET_RELEASE_DATE |
2011-06-15T00:00:00.000Z
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| START_TIME |
2009-07-13T01:29:36.000Z
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| STOP_TIME |
2011-01-23T12:43:54.000Z
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| MISSION_NAME |
LUNAR RECONNAISSANCE ORBITER
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| MISSION_START_DATE |
2009-06-18T12:00:00.000Z
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| MISSION_STOP_DATE |
N/A (ongoing)
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| TARGET_NAME |
MOON
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| TARGET_TYPE |
SATELLITE
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| INSTRUMENT_HOST_ID |
LRO
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| INSTRUMENT_NAME |
MINI-RF LRO
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| INSTRUMENT_ID |
MRFLRO
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| INSTRUMENT_TYPE |
RADAR MAPPER
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| NODE_NAME |
Geosciences
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| ARCHIVE_STATUS |
ARCHIVED - ACCUMULATING
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| CONFIDENCE_LEVEL_NOTE |
Overview:The Level 1 Mini-RF CDR data are the least processed data set released forthe Mini-RF instrument. Data presented here are an accurate representationof the Mini-RF data as received from the spacecraft, with no Doppler orspatial processing.Review:The Mini-RF EDR was reviewed internally by the Mini-RF team prior to releaseto the PDS. PDS also performed an external review of the Mini-RF EDR.Data Coverage and Quality:Data reported are the minimally processed data received from the spacecraftduring five mission phases: Launch, Cruise, Lunar_Orbit_Acquisition,Commissioning, and Exploration_Mission. These mission phases are defined as: Start time End time Phase Name Date (DOY) Date (DOY) ----------------- ---------------- ---------------- LAUNCH 18 Jun 2009 (169) 18 Jun 2009 (169) CRUISE 18 Jun 2009 (169) 23 Jun 2009 (174) LUNAR ORBIT ACQUISITION 23 Jun 2009 (174) 23 Jun 2009 (174) COMMISSIONING 23 Jun 2009 (174) 14 Sep 2009 (257) NOMINAL MISSION 15 Sep 2009 (258) 14 Sep 2010 (257) SCIENCE MISSION 15 Sep 2010 (258) 14 Sep 2012 (258)No Mini-RF data were collected during Launch, Cruise, orLunar_Orbit_Acquisition phases. The Mini-RF collected data during each ofthe other two mission phases. During these planned operational periods, theMini-RF functioned nominally and the data quality was good.A S-Band receive calibration test was conducted on 20 August, 2009. S-Bandtransmit calibration tests were conducted on 22-23 August, 2009. Thesecalibrations permit the characterization of both transmit polarization purityas well as determining how precisely polarization can be measured by theinstrument.Communications demonstration. Mini-RF experiments to demonstrate half-duplexcommunications were conducted on 16 August and 20 August, 2009.The Mini-RF began collecting data over the lunar south polar region 13 July2009 to support LCROSS targeting by characterizing the surfaces ofpermanently shadowed regions. This data collection phase continued until theLCROSS impact on 9 October. 2009.From Oct 14 through Dec. 17, Mini-RF was largely restricted to collectingdata over non-polar sites that lie equatorward of 63 degrees latitude Northand South.Since 26 December 2010, the Mini-RF instrument has not transmitted the RFenergy required to create radar images of the lunar surface. The Mini-RF teamlooked at the initial 13 collects attempted from that date forward and notedthat in all but one collect the data appeared bad, looking like noise. Theteam continued to attempt data collections at a reduced rate (about 1 collectper day) through January 23, 2011. Products included in this data set madefrom data collected after 26 December 2010 do not contain scientificallyusefull data.Limitations:This data set is minimally processed data. The data are received from thespacecraft telemetry, ingested into the LRO Missions Operations Center (MOC),and then transferred to the APL Payload Operations Center (POC).
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| CITATION_DESCRIPTION |
LRO Mini-RF Calibrated Level 1 Data Set V1.0, LRO-L-MRFLRO-4-CDR-V1.0, NASA Planetary Data System, 2008.
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| ABSTRACT_TEXT |
This data set contains Level 1 archival calibrated burst mode data acquired from the Mini-RF instrument during the LRO mission and associated ancillary data.
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| PRODUCER_FULL_NAME |
D. BEN BUSSEY, HELENE WINTERS, DAVID LAVALLEE, MIKE REID
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| SEARCH/ACCESS DATA |
Geosciences Web Service
Geosciences Online Archives
Lunar Orbital Data Explorer
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