Discovery certificate for object 2018tl
TNS Astronomical Transient Report No. 16905 [ 2018TNSTR.212....1S ]

Date Received (UTC): 2018-02-13 09:43:34
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 2018tl
Discoverer internal name: ASASSN-18ci
Coordinates (J2000): RA = 06:42:33.254 (100.63856) DEC = +40:02:32.96 (40.04249)
Discovery date: 2018-02-13 03:07:12 (JD=2458162.63)


Remarks: On the rise, faint PS1 match, so most likely a CV, but could also be a SN

Photometry

Discovery (first detection):
Discovery date: 2018-02-13 03:07:12
Flux: 16.5 ABMag
Filter: g-Sloan
Instrument: Leavitt
Telescope: ASASSN-Leavitt

Last non-detection:
Last non-detection date: 2018-02-11 09:36:00
Limiting flux: 17.8 VegaMag
Filter: V-Johnson
Instrument: Brutus
Telescope: ASASSN-Brutus


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2018tl