AstroNote 2022-206

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DRAFT
2022-10-05 17:36:03
Type: Object/s-Discovery/Classification
Pan-STARRS observations of AT2022tsd
Authors: M. Fulton, S. J. Smartt, K. W. Smith, D. R. Young, S. Srivastav, T. Moore (QUB), K. C. Chambers , M. E. Huber, A. S. B. Schultz, T. de Boer, J. Bulger, J. Fairlamb, H. Gao, C. C. Lin, T. Lowe, E. Magnier, R. J. Wainscoat (IfA, Univ. Hawaii), T.-W. Chen (Stockholm), A. Rest (STScI), C. Stubbs (Harvard)
Source Group: Pan-STARRS
Abstract:
We report the Pan-STARRS observations of the fast optical transient candidate AT2022tsd. Observations were performed on MJD 59829.557 (2022-09-07 13:29:18 UTC), MJD 59846.569 ( 2022-09-24 13:39:01 UTC) and MJD 59852.468 (2022-09-30 11:13:55 UTC) measuring m_i = 20.52 +/- 0.11, m_w = 21.94 +/- 0.12 and m_w = 21.85 +/- 0.25 respectively.

We report the Pan-STARRS observations of the fast optical transient candidate AT2022tsd, discovered by ZTF on MJD 59829.47 (2022-09-07 11:21:15 UTC) and whose fast-evolving nature was first highlighted by Anna Y. Q. Ho et al. in Astronote 2022-199.

The field of AT2022tsd has been observed by Pan-STARRS routinely during normal survey operations, and we have since forced the photometry at the position of AT2022tsd. The nightly stacked forced photometry reveals no historical activity, and measurements for the most recent observations are as follows. Magnitudes are quoted in the AB system. Limits are to 3-sigma.

MJD Filter Mag Mag Error Telescope
59803.584 i >21.02   PS1
59824.601 w >22.48   PS2
59829.557 i 20.52 0.11 PS2
59846.569 w 21.94 0.12 PS1
59852.468 w 21.85 0.25 PS2

A screenshot of the Pan-STARRS forced photometry is attached.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2022tsd [ZTF22abftjko]03:20:10.868+08:44:55.9603:20:10.863+08:44:55.63