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Indian Space Science Data Centre (ISSDC)
Indian Space Science Data Center (ISSDC) is a new facility being established by ISRO, as the primary data center for the payload data archives of Indian Space Science Missions. This data center, located at the Indian Deep Space Network (IDSN) campus in Bangalore, is responsible for the ingestion, archive, and dissemination of the payload data and related ancillary data for Space Science missions. The principal investigators of the science payloads as well as scientists from other institutions and general public will use this facility. The facility will be supporting Chandrayaan-1, ASTROSAT and Megha-tropiques and any other future space science missions.
Payload data from the satellites will be received at the data reception stations and subsequently transferred to ISSDC for further processing.
The raw payload data received through the data reception stations is further processed to generate Level-0 and Level-1 data products that are stored in the ISSDC archives for subsequent dissemination. Automation in the entire chain of data processing is planned. Raw payload data / Level-0 data/ Level-1 data for each science payload is transferred to the respective Payload Operations Centers (POC) for further processing, analysis and generation of higher level data products. The higher level data products generated by the POCís are subsequently transferred to ISSDC archives for storage and dissemination. The data archives for Level-0 and higher products are organized following the Planetary Data System (PDS) standards.
The dissemination of data from ISSDC to the payload operations centers / principal investigators, scientists and general public is supported through private WAN connections and Internet.
Software packages developed by software development teams in the different centers of ISRO, by the principal investigatorís teams / payload development teams are to be deployed at ISSDC to support these functions.
ISSDC data archival and distribution functions follow the data policy guidelines of ISRO. The data transfer system at ISSDC, with suitable security systems, provides for distribution of science data (as per data policy). After a pre-specified proprietary period, ISSDC would make the data available to public users who can access the archives through the Internet.
ISSDC supports six primary services; viz Access Services, Interchange Services, Archive Services, Support Services, Operations Services and Maintenance Services.
ISSDC interfaces with Mission Operations Complex, Data reception centers, Payload designers, Payload operations centers, Principal investigators, Mission software developers and Science data users to execute its functions.
The primary facilities for ISSDC have been established at the IDSN site, Byalalu at Bangalore.
Payload Operations Centre (POC)
Payload Operation Centres focus on the higher levels of science data processing, planning of payload operations, performance assessment of the payload and payload calibration. POC is authorized to interact with MOX in conducting the payload operations. These centers are co-located with the institutions/laboratories of the Instrument designers, Principal Investigators and will be processing and analysing data from a specific payload. POCs will pull relevant payload (level 0 and level 1) and ancillary data sets from the ISSDC dissemination server and process the data to generate higher level products. These products will be archived in ISSDC after qualification.
Payload Operations Centers are planned at SAC, Ahmedabad (TMC, HySI), ISAC, Bangalore (C1XS, HEX, LLRI), SPL,VSSC, Trivandrum (SARA, MIP), APL, Maryland, USA ( MiniSAR), Brown University, JPL, USA (M3), Max Planck Institute, Germany (SIR-2), RAL,UK (C1XS), Swedish institute of Space Physics,Kiruna, Sweden (SARA).
 
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Last Update
11 Nov 2008