Discovery certificate for object 2019ctz
TNS Astronomical Transient Report No. 31984 [ 2019TNSTR.500....1S ]

Date Received (UTC): 2019-04-04 08:21:38
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

K. Z. Stanek, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019ctz
Discoverer internal name: ASASSN-19io
Coordinates (J2000): RA = 21:33:10.498 (323.29374) DEC = -18:20:26.09 (-18.34058)
Discovery date: 2019-04-04 03:21:36 (JD=2458577.64)

Potential host galaxy: 2MASX J21331035-1820223

Remarks: Present in several epochs, discovered after the seasonal break, unknown redshift host galaxy

Photometry

Discovery (first detection):
Discovery date: 2019-04-04 03:21:36
Flux: 17.7 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2018-12-04 01:55:12
Limiting flux: 18.1 ABMag
Filter: g-Sloan
Instrument: Leavitt
Telescope: ASASSN-Leavitt


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