Classification certificate for object 2017dei
TNS Classification Report No. 958 [ 2017TNSCR.498....1B ]

Date Received (UTC): 2017-04-30 13:45:08
Sender: Dr. Subhash Bose
Group: ASAS-SN

S. Bose, T. Holoien, K. Z. Stanek, S. Dong report/s a classification of object: SN 2017dei

Type: SN Ia
Redshift: 0.019804

Remarks: The best match for the spectrum of 2017dei/Gaia17bat is found with Type Ia supernova SN 2004gs (at t=+4day). The spectrum also matches with a number of normal SNe Ia, few days after maximum (1-8 days). SNID estimated redshift is also found to be consistent with the host redshift of ESO 529- G 005 (z=0.019804, NED).

The following Classification spectrum was provided:

Obsdate: 2017-04-30 11:02:24
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/2017dei