Discovery certificate for object 2019szi
TNS Astronomical Transient Report No. 49844 [ 2019TNSTR2134....1F ]

Date Received (UTC): 2019-10-21 15:28:51
Sender: ZTF (ALeRCE)
Source Group: ALeRCE

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

IAU Designation: AT 2019szi
Discoverer internal name: ZTF19acgkbou
Coordinates (J2000): RA = 21:15:06.507 (318.7771133) DEC = +25:44:29.90 (25.7416388)
Discovery date: 2019-10-21 02:49:17 (JD=2458777.6175579)

Potential host galaxy: WISEA J211506.52+254430.0

Remarks: Early SN candidate (g-rise > 0.04 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19acgkbou

Photometry

Discovery (first detection):
Discovery date: 2019-10-21 02:49:17
Flux: 19.9618 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-10-18 04:57:32
Limiting flux: 20.0196 ABMag
Filter: r-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/2019szi