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AstroSat/SSM data pipeline

  • Data Pipeline
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Abstract

The data pipeline at the Payload Operation Centre (POC) of the Scanning Sky Monitor (SSM) onboard AstroSat involves: (i) fetching the Level-0 data from the Indian Space Science Data Centre (ISSDC), (ii) Level-0 to Level-1 data processing followed by Level-2 data generation, and (iii) transfer of the Level-1 and Level-2 data back to ISSDC for dissemination of the re-packaged Level-2 data products. The major tasks involved in the generation of Level-1 and Level-2 data products are: (a) quality checks; time, alignment corrections, (b) temporal-HK plots generation, and, (c) image processing; light curve generation. The typical turn around time for this fully automated pipeline is about 25 min for one orbit data. In this paper, details of all the stages of this data pipeline are discussed.

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Notes

  1. The non-standard MAXI product of 2.5–10 keV light curve is generated using the MAXI on-demand Process at http://maxi.riken.jp/mxondem/.

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Acknowledgements

The authors are thankful to the anonymous referee for her/his very useful suggestions and comments which have helped to improve the quality of the manuscript. This research has made use of MAXI data provided by RIKEN, JAXA and the MAXI team. BTR, SV, MCR and AS thank GH of SAG, DD of PDMSA, and Director, URSC for encouragement and continuous support to carry out research and project work.

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Authors and Affiliations

  1. Space Astronomy Group, ISITE Campus, U.R. Rao Satellite Centre, Outer Ring Road, Marathahalli, Bengaluru, 560 037, India

    B. T. Ravishankar, S. Vaishali, M. C. Ramadevi & Abhilash Sarwade

  2. Inter-University Centre for Astronomy and Astrophysics, Ganeshkhind, Pune, 411 007, India

    D. Bhattacharya

  3. Department of Astronomy and Astrophysics, Raman Research Institute, Sadashivanagar, Bengaluru, 560 080, India

    S. Seetha

Authors
  1. B. T. Ravishankar
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  2. S. Vaishali
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  3. D. Bhattacharya
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  4. M. C. Ramadevi
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  5. Abhilash Sarwade
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  6. S. Seetha
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Corresponding author

Correspondence to B. T. Ravishankar.

Additional information

This article is part of the Special Issue on “AstroSat: Five Years in Orbit”.

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Ravishankar, B.T., Vaishali, S., Bhattacharya, D. et al. AstroSat/SSM data pipeline. J Astrophys Astron 42, 56 (2021). https://doi.org/10.1007/s12036-021-09729-z

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  • DOI: https://doi.org/10.1007/s12036-021-09729-z

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