Classification certificate for object 2018ko
TNS Classification Report No. 1681 [ 2018TNSCR.146....1P ]

Date Received (UTC): 2018-02-02 15:25:52
Sender: Jose Prieto
Group: ASAS-SN

J. L. Prieto (UDP/MAS), J. Rupert (MDM obs), S. Dong, P. Cheng (KIAA-PKU) report/s a classification of object: SN 2018ko

Type: SN Ia

Remarks: We obtained an optical spectrum (range 3900-6850 Angstroms) of ASASSN-18bi/AT2018ko on UT 2018 Jan 31.3 with OSMOS mounted on the MDM 2.4m telescope at KPNO. The spectrum is that of a normal Type Ia around maximum light. SNID (Blondin & Tonry 2007) give a best-fit age of -1 days and redshift consistent with the host galaxy redshift reported in NED.

The following Classification spectrum was provided:

Obsdate: 2018-01-31 07:57:40
Instrument: OSMOS
Telescope: MDM 2.4m Hiltner

Details of the object and its spectra can be viewed here: https://wis-tns.weizmann.ac.il/object/2018ko