Discovery certificate for object 2019xtw
TNS Astronomical Transient Report No. 55689 [ 2019TNSTR2685....1S ]

Date Received (UTC): 2019-12-24 16:03:05
Sender: Prof. Krzysztof Stanek
Reporting Group: ASAS-SN     Discovery Data Source: ASAS-SN

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

IAU Designation: SN 2019xtw
Discoverer internal name: ASASSN-19adu
Coordinates (J2000): RA = 02:43:33.600 (40.89) DEC = -38:37:31.12 (-38.62531)
Discovery date: 2019-12-24 05:45:36.000 (JD=2458841.74)

Potential host galaxy: ESO 299- G 013
Host redshift: 0.015964

Remarks: Present in two epochs, rapid rise, most likely a young core-collapse SN

Photometry

Discovery (first detection):
Discovery date: 2019-12-24 05:45:36.000
Flux: 17.1 ABMag
Filter: g-Sloan
Instrument: Cassius
Telescope: ASASSN-Cassius

Last non-detection:
Last non-detection date: 2019-12-23 05:31:12
Limiting flux: 18.6 ABMag
Filter: g-Sloan
Instrument: Cassius
Telescope: ASASSN-Cassius


Details of the new object can be viewed here: https://www.wis-tns.org/object/2019xtw