Discovery certificate for object 2018tt
TNS Astronomical Transient Report No. 16913 [ 2018TNSTR.211....1B ]

Date Received (UTC): 2018-02-13 16:32:00
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

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

IAU Designation: SN 2018tt
Discoverer internal name: ASASSN-18co
Coordinates (J2000): RA = 09:54:23.203 (148.59668) DEC = -14:39:18.25 (-14.65507)
Discovery date: 2018-02-13 04:19:12 (JD=2458162.68)

Potential host galaxy: 2MASX J09542381-1439215
Host redshift: 0.060005

Remarks: On the rise, confirmed by follow-up imaging

Photometry

Discovery (first detection):
Discovery date: 2018-02-13 04:19:12
Flux: 18.05 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski

Last non-detection:
Last non-detection date: 2018-02-10 04:48:00
Limiting flux: 18.9 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski


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