Discovery certificate for object 2019roi
TNS Astronomical Transient Report No. 48333 [ 2019TNSTR1953....1F ]

Date Received (UTC): 2019-10-01 12:50:26
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019roi
Discoverer internal name: ZTF19acbpvap
Coordinates (J2000): RA = 21:32:09.233 (323.0384689) DEC = -01:42:22.43 (-1.7062294)
Discovery date: 2019-10-01 04:32:13 (JD=2458757.6890394)

Potential host galaxy: SDSS J213209.24-014223.6
Host redshift: 0.225

Remarks: Early SN candidate classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19acbpvap

Photometry

Discovery (first detection):
Discovery date: 2019-10-01 04:32:13
Flux: 20.1272 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-09-28 06:03:14
Limiting flux: 20.549 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2019roi