Photometry of AT2022qoz
ATel #15548; D. D. Balam (DAO/NRC), C. E. Spratt (ret), P. Langill (RAO/University of Calgary) and D. W. E. Green (CBAT). 1. 82-m Plaskett telescope of the (Dominion Astrophysical Observatory) National Research Council of Canada
on 11 Aug 2022; 23:57 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: David D. Balam (cosmos@uvic.ca)
Subjects: Optical, Cataclysmic Variable, Supernovae, Transient
Optical transient
AT2022qoz (https://www.wis-tns.org/object/2022qoz) in apparent host galaxy SDSS J203856.43+142051.4 was observed with the 1.82-m Plaskett telescope (Dominion Astrophysical Observatory/National Research Council of Canada) on UT 2022 Aug. 06.277 and Aug. 08.279 in SDSS filters u (1860 seconds duration), g (1260 sec) and r (1260 sec). Differential photometry, using an aperture of 9 seconds of arc was performed on the transient using a nearby star (SDSS J203854.65+142140.4) with published magnitudes. We find the following magnitudes and colours: UT 2022 Aug. 06.277, u = 19.97 (+/- 0.12), g = 18.61 (0.02) and r = 18.41 (0.02) with colours u-g = +1.36(+/- 0.12) g-r = +0.20(+/- 0.03). UT 2022 Aug. 08.279, u = 19.67 (0.07), g = 18.67 (0.02) and r = 18.36 with colours u-g = +1.00(+/- 0.06) g-r = +0.31(+/- 0.04).
