Chandrayaan-1 PDS Data Products Archival Generation

and Browse

By

Ajay Kumar Prashar

HRDPD/SIPG

Chandrayaan-1 SAC Data Processing Team

Contents

• ISDA (ISRO Science Data Archive) Overview• PDS (Planetary Data System) Overview• Mission & instrument Overview• Archive Process• Data Products Definitions• Data Products Archive Generation• Archive Organization : Mission & Instrument level• Visualizations of PDS Data Products

(Ch1PDSViewer/NASAVIEW/USGS-ISIS)• Chandrayaan-1 Browse Application

ISDA – Overview

Central repository for all scientific and engineering data returned by ISRO’s planetary missions

Established at Indian Space Science Data Centre (ISSDC) Bangalore - in 2008.

ISDA archives data sets from following missions: Chandrayaan-1 Mars Orbiter Mission Astrosat Chandrayaan-2 (Future)

ISDA adopted PDS as archive standard for generating mission & instrument specific data sets for the scientific user community

ISDA provides international collaboration with IPDA (International Planetary Data Alliance)

PDS - Overview

Well known Archive standard for all the NASA planetary missions in the scientific user community.

Adopted by ESA, JAXA and other space agencies across globe.

Features of PDS Self structured, documented &

Peer Review Data Sets Long-term access and usability

of data ISRO had also adopted PDS3 for

following missions Chandrayaan-1 Mars Orbiter Mission.

ISRO will adopt PDS4 for Chandrayaan-2 and continue PDS4 for future planetary missions.

PDS Home Page (http://pds.nasa.gov)

Mission & Instruments – Overview Chandrayaan-1, India’s first mission to Moon, was launched successfully

on 22 October 2008 from SDSC SHAR, Sriharikota. Spacecraft was orbiting around Moon at a height of 100 km from the

lunar surface for chemical, mineralogical and photo-geologic mapping of the Moon.

Spacecraft carried 11 scientific instruments built in India, USA, UK,Germany, Sweden and Bulgaria.

Satellite made more than 3400 orbits around the moon. Mission duration : Nov. 2008 to Aug. 2009. Instruments:

Terrain Mapping Camera (TMC) Hyper Spectral Imager (HySI) Lunar Laser Ranging Instrument (LLRI) High Energy X-ray Spectrometer (HEX) Moon Impact Probe (MIP) Chandrayaan-1 X-ray Spectrometer (C1XS) Near Infrared Spectrometer (SIR-2) Sub Kev Atom Reflecting Analyzer (SARA) Miniature Synthetic Aperture Radar (Mini SAR) Moon Mineralogy Mapper (M3) Radiation Dose Monitor (RADOM)

Archive ProcessSr.No.

Steps Activity Involved

1. Orientation

Analyzed PDS requirement for Data by studying missionsthat have archived Mars Data in PDS

2. Archive Planning

Deciding what to archive, when, and generally how.Document Preparation- Archive Plan- Archive Conventions

3. Archive Design

Learning the details of putting an archive data settogether.

EAICD Document Preparation- EAICDs for TMC and HySI

4. Software Development Implement and Test the data and Volume

Design, Development, Testing and Operationalization ofCH1 PDS Data Archive Pipeline Software

5. Dataset Assembly and Validation

Pulling the pieces together

6. Data Set Review

PDS Data Sets quality check

7. Delivery Distributes Peer Reviewed data to the scientific users

Data Products DefinitionsPayload Type Products

TMC

ISRO LEVEL-0

CODMAC LEVEL 2Raw payload data along with the ancillary information, which includes ephemeris, attitude and rates. This

level of processing includes data qualification, byte alignment, data decompression and time tagging. Also the

data is given along with the calibration information for radiometry. The pixel values are given in terms of

counts, with a model to convert in to radiance. Data from all the three views (AFT, NADIR and FORE) are

considered individually as well as together for processing.

ISRO LEVEL-1

CODMAC LEVEL 3

Radiometrically calibrated/corrected and geometrically mapped products. The processing includes detector

response normalization, framing, line/pixel loss correction and tagging the selenographic coordinate to each

pixel. The pixel values are given in terms of radiances, with a model to convert in to counts. Here again data

from all the three views (AFT, NADIR and FORE) are considered individually as well as together for processing.

HySI ISRO LEVEL-0

CODMAC

LEVEL 2

Band separated raw payload data along with the ancillary information, which includes ephemeris, attitude

and rates. This level of processing includes data qualification, byte alignment and time tagging. Also the data

is given along with the calibration information for radiometry. The pixel values are given in terms of counts,

with a model to convert in to radiance.

ISRO LEVEL-1A

CODMAC LEVEL 3

Band separated radiometrically calibrated/corrected and geometrically mapped products. The processingincludes detector response normalization, framing, line/pixel loss correction and tagging the selenographiccoordinate to each pixel. The pixel values are given in terms of radiances, with a model to convert in to counts

ISRO LEVEL-1B

CODMAC LEVEL4 Same as Level ‘1a’. Band to band registration applied additionally in this level, which needs resampling

Data Products Formats & Label StructureInstrument ID

Instrument Output

PDS Primary Data Products

PDS Secondary Data Products

TMC Three Raw grayscale images of Moon surface

Count & Radiance (IMAGE)

Browse (BROWSE_IMAGE)Geometry -Grid data(TABLE)

HySI Band wise images of Moon (64 Bands)

Count & RadianceSPECTRAL QUBE

Browse (BROWSE_IMAGE)Geometry -Grid data(TABLE)

Data Products Archive GenerationTMC (Level 0 Raw Data)& Ancillary Information

Ch1 PDS Generator

TMC Level 2 (ISRO Level 0)

EDR PDS

HYSI (Level 0 Raw Data)& Ancillary Information

TMC Level 3 (ISRO Level 1)

RDR PDS

HYSI Level 2 (ISRO Level 0)

EDR PDS

HYSI Level 3 (ISRO Level 1a)

RDR PDS

HYSI Level 4 (ISRO Level 1b) REFDR

PDS

Ch1 PDS Verifier

Ch1 PDS Archival

Radiometric Correction

SelenoTagger

Band to Band Registration (For HySI)

DPGS Scheduler

PDS Archive Pipeline

Archive Organization : Mission Level

Archive

*NPO*PLSP *LEOP *LTMC *TPO*LCPT

TMC HYSI LLRI HEX C1XS Mini-SAR SIR-2 RADOM M3 SARA MIP

* Mission PhasesPLSP – Pre-launch Simulation PhaseLEOP – Launch and Early Orbit PhaseLTMC – Lunar transfer Trajectory and Midcourse corrections LCPT – Lunar Capture PhaseNPO – Normal Phase OperationsTPO – Terminal Phase Operations

Archive Organization : Instrument Level

CH1ORB-L-TMC-3-NPO-RDR-FULL-RES-V1.0

EXTRASDATA DOCUMENT CATALOGSOFTWARE

INDEX

AAREADME.TXT

VOLDESC.CAT

EXTRINFO.TXT

INDXINFO.TXT

INDEX.TAB

INDEX.TAB

DOCINFO.TXT

TMC_HYSI_EAICD.PDF

TMC_HYSI_EAICD.LBL CATINFO.TXT

MISSION.CAT

INSTHOST.CAT

INST.CAT

DATASET.CAT

PERSON.CAT

REF.CATORBIT_00000

TMC FORE IMAGE FILE

SOFT.CAT

DATAINFO.TXT

ORBIT_00000_TO_00099 ORBIT_mmmmm_TO_nnnnn

VOLINFO.TXT

ORBIT_00001

ORBIT_00100_TO_00199

ORBIT_00099

TMC FORE LABEL FILE

TMC AFT IMAGE FILE

TMC AFT LABEL FILE

TMC NADIR IMAGE FILE

TMC NADIR LABEL FILE

ORBIT_00000_TO_00099

ORBIT_mmmmm_TO_nnn

nn

ORBIT_00000 ORBIT_00099

SUN PARAMETER (SPM) FILE

ORBIT & ATTITUDE (OAT) FILE

LIBERATION (LBR) FILE

CH1_PDSGEN.PDF

CH1_PDSGEN.LBL

SOFTINFO.TXT

CH1PDSVIEWER_SOFT.ZIP

CH1PDSVIEWER_SOFT.LBL

BROWSE_INDEX.TAB

BROWSE_INDEX.LBL

GEOMETRY_INDEX.TAB

GEOMETRY_INDEX.LBL

Archive Organization : Instrument Level

CH1ORB-L-TMC-3-NPO-RDR-FULL-RES-V1.0

GEOMETRY

ORBIT_00000

TMC FORE GRID FILE

GEOINFO.TXT

ORBIT_00000_TO_00099 ORBIT_mmmmm_TO_nnnnn

ORBIT_00001

ORBIT_00100_TO_00199

ORBIT_00099

TMC FORE GRID LABEL FILE

TMC AFT GRID FILE

TMC AFT GRID LABEL FILE

TMC NADIR GRID FILE

TMC NADIR GRID LABEL FILE

BROWSE

ORBIT_00000

BRWSINFO.TXT

ORBIT_00000_TO_00099

ORBIT_mmmmm_TO_nnnnn

ORBIT_00001

ORBIT_00100_TO_00199

ORBIT_00099

TMC FORE BROWSE FILE

TMC FORE BROWSE LABEL FILE

TMC AFT BROWSE FILE

TMC NADIR BROWSE FILE

TMC NADIR BROWSE LABEL FILE

TMC AFT BROWSE LABEL FILE

CALIB

CALINFO.TXT

TMC_NRF_SR.TAB

TMC_NRF_SR.LBL

TMC_NRA_SR.TAB

TMC_NRA_SR.LBL

TMC_NRN_SR.TAB

TMC_NRN_SR.LBL

Archive Organization : Instrument Level

CH1ORB-L-HYSI-4-NPO-REFDR-FULL-RES-V1.0

EXTRASDATA DOCUMENT CATALOGSOFTWARE

INDEX

AAREADME.TXT

VOLDESC.CAT

EXTRINFO.TXT

INDXINFO.TXT

INDEX.TAB

INDEX.LBLDOCINFO.TXT

TMC_HYSI_EAICD.PDF

TMC_HYSI_EAICD.LBLCATINFO.TXT

MISSION.CAT

INSTHOST.CAT

INST.CAT

DATASET.CAT

PERSON.CAT

REF.CAT

SOFTINFO.TXT

ORBIT_00000

SOFT.CAT

DATAINFO.TXT

ORBIT_00000_TO_00099 ORBIT_mmmmm_TO_nnnnn

VOLINFO.TXT

ORBIT_00001

ORBIT_00100_TO_00199

ORBIT_00099

ORBIT_00000_TO_00099

ORBIT_mmmmm_TO_nnn

nn

ORBIT_00000 ORBIT_00099

SUN PARAMETER (SPM) FILE

ORBIT & ATTITUDE (OAT) FILE

LIBERATION (LBR) FILE

CH1_PDSGEN.PDF

CH1_PDSGEN.LBL

CH1PDSVIEWER_SOFT.ZIP

CH1PDSVIEWER_SOFT.LBL

LABEL

LBLINFO.TXT

BAND_BIN.FMT

HYSI QUBE IMAGE FILE

HYSI QUBE LABEL FILE

BROWSE_INDEX.TAB

GEOMETRY_INDEX.LBL

BROWSE_INDEX.LBL

GEOMETRY_INDEX.TAB

Archive Organization : Instrument Level

CH1ORB-L-HYSI-4-NPO-REFDR-FULL-RES-V1.0

GEOMETRY

ORBIT_00000

HYSI GRID FILES(BAND No. 32)

GEOINFO.TXT

ORBIT_00000_TO_00099 ORBIT_mmmmm_TO_nnnnn

ORBIT_00001

ORBIT_00100_TO_00199

ORBIT_00099

BROWSE

ORBIT_00000

BRWSINFO.TXT

ORBIT_00000_TO_00099

ORBIT_mmmmm_TO_nnnnn

ORBIT_00001

ORBIT_00100_TO_00199

ORBIT_00099

CALIB

CALINFO.TXT

HYS_NR_RDN_NRML.TAB

HYS_NR_RDN_NRML.LBL

HYS_NR_RDN_CAL.TAB

HYS_NR_RDN_CAL.LBL

HYS_NR_RDN_SPC.TAB

HYS_NR_RDN_SPC.LBL

HYSI LABEL FILE (Band No. 32)

HYSI BANDWISE (1..64) BROWSE FILES

HYSI BANDWISE (1..64) BROWSE FILES

Visualization of TMC & HySI PDS Data ProductsCh1 PDS Viewer

TMC Data Product

HySI Data Product

Visualization of TMC PDS Data Products - NASAVIEW

Visualization of HySI PDS Data Products - NASAVIEW

Visualization of TMC & HySI PDS Data ProductsUSGS-ISIS

Chandrayaan-1 Browse Application

Chandrayaan-1 Browse Data Download

Chandrayaan-1 TMC DEM Search Output

Globe View TMC MOSAIC

HYSI FIRST SEASON WITH CLEMENTINE BACKGROUND

M3 FIRST SEASON

TMC Coverage Plots

HYSI Coverage Plots

TMC Image Plots

0°

TMC NEAR SIDE COVERAGE TMC 90 degree EAST COVERAGE

TMC FAR SIDE COVERAGE TMC 90 degree WEST COVERAGE

90°0°

180°270°

For Chandrayaan-1 Data Access : -www.issdc.gov.in/CHBrowse/index.jsp

Thank You