TNS Classification Report No. 24009 [ 2026TNSCR2462....1K ]

Date Received (UTC): 2026-06-11 18:22:32
Sender: GOTO_bot
Group: GOTO

T. Killestein, D. B. Malesani, D. O'Neill, J. Mills, M. Pursiainen, B. P. Gompertz, J. Lyman, R. Starling, K. Ackley, M. Dyer, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson and A. Kumar report on behalf of the GOTO collaboration. report/s a classification of object: AT 2026owq

Type: Afterglow
Redshift: 0.473

Remarks: We identify Mg II and Ca II absorption features at a common redshift of z=0.473, which we suggest to be the redshift of GRB 260610B.

The following Classification spectrum was provided:

Obsdate: 2026-06-11 02:18:15
Instrument: ALFOSC
Telescope: Nordic Optical Telescope

Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2026owq