Discovery Date: 2025-12-11 09:08:24 UTC
Discovery MJD: 61020.38
Disc g-Mag: 20.34±0.28
Latest Date: 2025-12-20 09:42:23 UTC
Latest MJD: 61029.40
Latest r-Mag: 20.24±0.21
Transient Name Server
AT2025agja
The transient was discovered on 11th December 2025 at 09:08:24 (MJD 61020.38) by ZTF as ZTF25acgrbkt with a discovery magnitude of g = 20.38..
Sherlock Contextual Classification
Prediction: Supernova
The transient is possibly associated with 122361136655167611; an r=19.68 mag galaxy found in the PS1 catalogue. Its located 0.22" N, 0.01" W from the galaxy centre.
Difference Image Lightcurves
Access the data from these plots in the ZTF Alert Packet Data table below. Double click on the plots to see the full lightcurve.
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Context Map
DECaLS Sky Browser
ZTF Alert Packet Data
| MJD | UTC | Filter | unforced mag | unforced mag status | forced flux (μJy) | images | alert packet |
|---|---|---|---|---|---|---|---|
| 61029.404444 | 2025-12-20 09:42:23 | r | 20.244 ± 0.207 | +ve | target ref diff | data | |
| 61029.288275 | 2025-12-20 06:55:07 | g | 20.538 ± 0.224 | +ve | 22.0 ± 3.4 | target ref diff | data |
| 61026.465521 | 2025-12-17 11:10:20 | r | 19.878 ± 0.276 | +ve | 39.1 ± 5.8 | target ref diff | data |
| 61026.422859 | 2025-12-17 10:08:55 | g | 20.512 | limit | 24.2 ± 3.1 | ||
| 61024.424144 | 2025-12-15 10:10:45 | g | 20.296 ± 0.172 | +ve | 28.5 ± 2.7 | target ref diff | data |
| 61024.398901 | 2025-12-15 09:34:25 | r | 19.966 ± 0.179 | +ve | 39.0 ± 3.2 | target ref diff | data |
| 61022.432130 | 2025-12-13 10:22:15 | r | 20.061 ± 0.223 | +ve | 34.7 ± 3.0 | target ref diff | data |
| 61022.381979 | 2025-12-13 09:10:03 | g | 20.398 ± 0.194 | +ve | 25.1 ± 2.9 | target ref diff | data |
| 61020.460660 | 2025-12-11 11:03:20 | r | 19.781 ± 0.203 | +ve | 44.4 ± 4.6 | target ref diff | data |
| 61020.380845 | 2025-12-11 09:08:24 | g | 20.344 ± 0.279 | +ve | 25.9 ± 4.5 | target ref diff | data |
| 61014.413634 | 2025-12-05 09:55:38 | g | 19.133 | limit | -2.6 ± 10.7 | ||
| 61014.338553 | 2025-12-05 08:07:30 | r | 19.041 | limit | 21.3 ± 11.2 | ||
| 61011.410000 | 2025-12-02 09:50:24 | r | 20.062 | limit | 19.2 ± 4.3 | ||
| 61011.318333 | 2025-12-02 07:38:23 | g | 19.634 | limit | 19.5 ± 6.3 | ||
| 61009.458518 | 2025-11-30 11:00:15 | g | 20.636 | limit | 10.0 ± 2.7 | ||
| 61006.456979 | 2025-11-27 10:58:03 | g | 20.362 | limit | -0.6 ± 3.3 | ||
| 61006.419699 | 2025-11-27 10:04:22 | r | 19.898 | limit | 8.6 ± 5.3 | ||
| 61004.391817 | 2025-11-25 09:24:12 | g | 20.579 | limit | 1.6 ± 2.9 | ||
| 61004.374224 | 2025-11-25 08:58:52 | r | 20.458 | limit | -0.8 ± 2.9 | ||
| 60992.504317 | 2025-11-13 12:06:12 | r | 20.463 | limit | -0.6 ± 3.0 | ||
| 60990.507998 | 2025-11-11 12:11:31 | r | 19.489 | limit | 8.0 ± 7.0 | ||
| 60990.461447 | 2025-11-11 11:04:29 | g | 19.865 | limit | 3.4 ± 5.2 |
| MJD | filter | unforced_mag | unforced_mag_error | unforced_mag_status | forced_ujy | forced_ujy_error |
|---|---|---|---|---|---|---|
| 61029.404444 | r | 20.244 | 0.207 | positive | ||
| 61029.288275 | g | 20.538 | 0.224 | positive | 22.0 | 3.4 |
| 61026.465521 | r | 19.878 | 0.276 | positive | 39.1 | 5.8 |
| 61026.422859 | g | 20.512 | limit | 24.2 | 3.1 | |
| 61024.424144 | g | 20.296 | 0.172 | positive | 28.5 | 2.7 |
| 61024.398901 | r | 19.966 | 0.179 | positive | 39.0 | 3.2 |
| 61022.432130 | r | 20.061 | 0.223 | positive | 34.7 | 3.0 |
| 61022.381979 | g | 20.398 | 0.194 | positive | 25.1 | 2.9 |
| 61020.460660 | r | 19.781 | 0.203 | positive | 44.4 | 4.6 |
| 61020.380845 | g | 20.344 | 0.279 | positive | 25.9 | 4.5 |
| 61014.413634 | g | 19.133 | limit | -2.6 | 10.7 | |
| 61014.338553 | r | 19.041 | limit | 21.3 | 11.2 | |
| 61011.410000 | r | 20.062 | limit | 19.2 | 4.3 | |
| 61011.318333 | g | 19.634 | limit | 19.5 | 6.3 | |
| 61009.458518 | g | 20.636 | limit | 10.0 | 2.7 | |
| 61006.456979 | g | 20.362 | limit | -0.6 | 3.3 | |
| 61006.419699 | r | 19.898 | limit | 8.6 | 5.3 | |
| 61004.391817 | g | 20.579 | limit | 1.6 | 2.9 | |
| 61004.374224 | r | 20.458 | limit | -0.8 | 2.9 | |
| 60992.504317 | r | 20.463 | limit | -0.6 | 3.0 | |
| 60990.507998 | r | 19.489 | limit | 8.0 | 7.0 | |
| 60990.461447 | g | 19.865 | limit | 3.4 | 5.2 |
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