Table 1.
Optical photometry of AT2021any.
| Date | Δt(a) | Telescope (b) | Filter | Magnitude (c) |
|---|---|---|---|---|
| (MJD) | (s) | (AB) | ||
| 59230.2916 | 997.84 | P48 | r | 17.92 ± 0.02 |
| 59230.3307 | 4376.08 | P48 | g | 19.35 ± 0.05 |
| 59230.3316 | 4453.84 | P48 | g | 19.41 ± 0.06 |
| 59230.3563 | 6587.92 | P48 | g | 19.67 ± 0.06 |
| 59230.3712 | 7875.28 | P48 | r | 19.4 ± 0.05 |
| 59230.3717 | 7918.48 | P48 | r | 19.41 ± 0.05 |
| 59230.4303 | 12 981.5 | P48 | r | 19.91 ± 0.11 |
| 59230.8004 | 55 922.3 | DOT | R | 21.25 ± 0.06 |
| 59230.8052 | 56 337 | DOT | I | 21.36 ± 0.08 |
| 59230.8765 | 62 497.4 | CAHA | B | < 22.97 |
| 59230.8803 | 60 233.7 | CAHA | V | 22.17 ± 0.39 |
| 59230.8838 | 62 825.7 | CAHA | R | 21.22 ± 0.12 |
| 59230.8873 | 63 128.1 | CAHA | I | 21.23 ± 0.19 |
| 59230.9767 | 63 430.5 | NOT | g | 22.28 ± 0.05 |
| 59230.9772 | 71 154.6 | GTC | r | 21.74 ± 0.08 |
| 59230.9957 | 72 796.2 | NOT | r | 21.86 ± 0.04 |
| 59231.0147 | 74 437.8 | NOT | i | 21.65 ± 0.03 |
| 59231.047 | 77 228.6 | CAHA | B | < 22.13 |
| 59231.0504 | 77 522.3 | CAHA | V | < 21.4 |
| 59231.0538 | 77 816.1 | CAHA | R | < 20.96 |
| 59231.0572 | 78 109.8 | CAHA | I | < 20.01 |
| 59231.1475 | 85 911.8 | LBT | J | 21.62 ± 0.2 |
| 59231.1475 | 85 911.8 | LBT | H | 21.36 ± 0.24 |
| 59231.2062 | 90 983.4 | LDT | i | 22.1 ± 0.2 |
| 59231.9736 | 14 9433 | MPG | g | 23.39 ± 0.11 |
| 59232.0096 | 15 7287 | CAHA | r | 22.75 ± 0.13 |
| 59232.1705 | 17 4299 | MPG | g | 23.47 ± 0.06 |
| 59233.0184 | 23 6593 | CAHA | r | 22.92 ± 0.12 |
| 59233.0206 | 24 7748 | MPG | g | 23.84 ± 0.09 |
| 59239.5469 | 81 1620 | DOT | r | < 23.98 |
Notes.
The time is given relative to the estimated trigger time as derived from the structured jet model.
Abbreviations of the telescopes: 48 in Samuel Oschin Telescope at Palomar Observatory (P48), 3.6 m Devasthal Optical Telescope (DOT), 2.2 m Telescope at Centro Astronoḿico Hispano en Andalucía (CAHA), 2.56 m Nordic Optical Telescope (NOT), 10.4 m Gran Telescopio Canarias (GTC), Large Binocular Telescope (LBT), 4.3 m Lowell Discovery Telescope (LDT), and 2.2 m MPG.
The optical photometry data are from Ho et al. (2022) and Gupta et al. (2022).
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