UVIT data release version 7: Regenerated high-level UVIT data products.
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| Title: | UVIT data release version 7: Regenerated high-level UVIT data products. |
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| Authors: | JOSEPH, PRAJWEL1,2 (AUTHOR) prajwelpj@gmail.com, TANDON, S. N.3 (AUTHOR), GHOSH, S. K.4 (AUTHOR), STALIN, C. S.1 (AUTHOR) |
| Source: | Journal of Astrophysics & Astronomy. 7/1/2025, Vol. 46 Issue 2, p1-11. 11p. |
| Subjects: | Data release, High resolution imaging, Spectrometry, Open source software, Ultraviolet astronomy, Artificial satellites |
| Abstract: | Ultra-Violet Imaging Telescope (UVIT) on board AstroSat is an active telescope capable of high-resolution far-ultraviolet imaging (<1.5 ′ ′ ) and low-resolution ( λ / δ λ ≈ 100 ) slitless spectroscopy with a field-of-view as large as ∼ 0.5 ∘ . Now almost a decade old, UVIT continues to be operational and generates valuable data for the scientific community. UVIT is also capable of near-ultraviolet imaging (<1.5 ′ ′ ); however, the near-ultraviolet channel stopped working in August 2018 after providing data for nearly 3 years. This paper gives an overview of the latest version (7.0.1) of the UVIT pipeline and UVIT data release version 7. The high-level products generated using pipeline versions having a major ver. no. 7 will be called 'UVIT data release version 7'. The latest pipeline version overcomes two limitations of the previous version (6.3), namely: (a) inability to combine all episode-wise images; and (b) failure of the astrometry module in a large fraction of the observations. The procedures adopted to overcome these two limitations as well as a comparison of the performance of this new version over the previous one, are presented in this paper. The UVIT data release version 7 products are available at the Indian Space Science Data Center of the Indian Space Research Organization for archival and dissemination from 1 June 2024. New pipeline version is open source and made available on GitHub. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Ultra-Violet Imaging Telescope (UVIT) on board AstroSat is an active telescope capable of high-resolution far-ultraviolet imaging (<1.5 ′ ′ ) and low-resolution ( λ / δ λ ≈ 100 ) slitless spectroscopy with a field-of-view as large as ∼ 0.5 ∘ . Now almost a decade old, UVIT continues to be operational and generates valuable data for the scientific community. UVIT is also capable of near-ultraviolet imaging (<1.5 ′ ′ ); however, the near-ultraviolet channel stopped working in August 2018 after providing data for nearly 3 years. This paper gives an overview of the latest version (7.0.1) of the UVIT pipeline and UVIT data release version 7. The high-level products generated using pipeline versions having a major ver. no. 7 will be called 'UVIT data release version 7'. The latest pipeline version overcomes two limitations of the previous version (6.3), namely: (a) inability to combine all episode-wise images; and (b) failure of the astrometry module in a large fraction of the observations. The procedures adopted to overcome these two limitations as well as a comparison of the performance of this new version over the previous one, are presented in this paper. The UVIT data release version 7 products are available at the Indian Space Science Data Center of the Indian Space Research Organization for archival and dissemination from 1 June 2024. New pipeline version is open source and made available on GitHub. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 02506335 |
| DOI: | 10.1007/s12036-025-10069-5 |
