Discovery Date: 2019-01-04 02:19:35 UTC
Discovery MJD: 58487.10
Disc r-Mag: 19.43±0.15
Latest Date: 2019-01-08 03:32:41 UTC
Latest MJD: 58491.15
Latest g-Mag: 19.32±0.20
Transient Name Server
AT2019by
The transient was discovered on 4th January 2019 at 02:19:34 (MJD 58487.10) by ZTF as ZTF19aaafzah with a discovery magnitude of g = 19.37..
Sherlock Contextual Classification
Prediction: Supernova
The transient is possibly associated with GALEXASCJ003724.68-064254.3; an r=18.56 mag galaxy found in the NED/SDSS/PS1 catalogues. It's located 1.31 arcsec N, 0.13 arcsec 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 |
|---|---|---|---|---|---|---|---|
| 58491.147708 | 2019-01-08 03:32:41 | g | 19.323 ± 0.202 | +ve | target ref diff | data | |
| 58491.101215 | 2019-01-08 02:25:45 | r | 19.315 ± 0.149 | +ve | target ref diff | data | |
| 58487.126551 | 2019-01-04 03:02:13 | g | 19.370 ± 0.110 | +ve | target ref diff | data | |
| 58487.096933 | 2019-01-04 02:19:35 | r | 19.427 ± 0.154 | +ve | target ref diff | data | |
| 58482.183560 | r | 19.159 | limit | ||||
| 58474.127300 | r | 19.852 | limit | ||||
| 58474.099550 | g | 19.283 | limit | ||||
| 58471.147260 | r | 18.627 | limit | ||||
| 58471.123980 | g | 18.129 | limit |
| MJD | filter | unforced_mag | unforced_mag_error | unforced_mag_status | forced_ujy | forced_ujy_error |
|---|---|---|---|---|---|---|
| 58491.147708 | g | 19.323 | 0.202 | positive | ||
| 58491.101215 | r | 19.315 | 0.149 | positive | ||
| 58487.126551 | g | 19.370 | 0.110 | positive | ||
| 58487.096933 | r | 19.427 | 0.154 | positive | ||
| 58482.183560 | r | 19.159 | limit | |||
| 58474.127300 | r | 19.852 | limit | |||
| 58474.099550 | g | 19.283 | limit | |||
| 58471.147260 | r | 18.627 | limit | |||
| 58471.123980 | g | 18.129 | limit |
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