TNS Classification Report No. 21420 [ 2025TNSCR2460....1H ]

Date Received (UTC): 2025-06-28 07:54:17
Sender: Willem Hoogendam
Group: SCAT

Willem Hoogendam (IfA/Hawaii), on behalf of SCAT report/s a classification of object: SN 2025otl

Type: SN Ia-91bg-like
Redshift: 0.030389

Remarks: SN Ia with spectroscopic signatures similar to a 91bg-like (strong O I, secondary Si II, and likely Ti II trough). SNID best match is to SN 1999by. The redshift is from NED.

The following Classification spectrum was provided:

Obsdate: 2025-06-28 00:00:00
Instrument: SNIFS
Telescope: UH 88inch

Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2025otl