RA/DEC (2000)
14:32:38.258 +27:00:17.71
218.15941 +27.00492
Type
Afterglow
Redshift
0.473
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-06-10 23:58:40.512
TNS AT
Y
Public
Y
Discovery Mag
16.66
Filter
L-GOTO
Reporter/s
D. O'Neill, J. Mills, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, R. Starling, B. Gompertz, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration

Spectra

 AT_2026owq - 2026-06-11 02:18:15 NOT / ALFOSC (GOTO)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He II at z=vexp= km/s
Show C II at z=vexp= km/s
Show C III at z=vexp= km/s
Show C IV at z=vexp= km/s
Show N II at z=vexp= km/s
Show N III at z=vexp= km/s
Show N IV at z=vexp= km/s
Show N V at z=vexp= km/s
Show O at z=vexp= km/s
Show [O I] at z=vexp= km/s
Show O II at z=vexp= km/s
Show [O II] at z=vexp= km/s
Show [O III] at z=vexp= km/s
Show O V at z=vexp= km/s
Show O VI at z=vexp= km/s
Show Na at z=vexp= km/s
Show Mg at z=vexp= km/s
Show Mg II at z=vexp= km/s
Show Si II at z=vexp= km/s
Show S II at z=vexp= km/s
Show Ca II at z=vexp= km/s
Show [Ca II] at z=vexp= km/s
Show Fe II at z=vexp= km/s
Show Fe III at z=vexp= km/s
Show Å at z=vexp= km/s
Show Å at z=vexp= km/s
Show Å at z=vexp= km/s
Show Å at z=vexp= km/s
Show Tellurics 
Show Galaxy lines at z=
Show WR-WN at z=vexp= km/s
Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ATLAS-TDO_ATLAS-05_wide
 GOTO-N_GOTO-1_L
 ATLAS-HKO_ATLAS-02_orange
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
24015 2026-06-11 02:18:15 NOT / ALFOSC J. Mills, M. Pursiainen, D. O'Neill GOTO tns_2026owq_2461202.596005_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-06-10 23:54:07 - 2026-06-10 23:54:07 2461202.49591 - 2461202.49591 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
590983 2026-06-10 23:54:07 2461202.49591 16.307 0.017 20.25 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-N_GOTO-1 2026-06-05 01:42:17 - 2026-06-10 23:58:41 2461196.571027 - 2461202.499081 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
590912 2026-06-10 23:58:41 2461202.499081 16.66 0.01 ABMag L-GOTO GOTO-N_GOTO-1 360
590911 2026-06-05 01:42:17 2461196.571027 20.3 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-06-09 09:10:52 - 2026-06-09 09:10:52 2461200.88255 - 2461200.88255 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
590982 2026-06-09 09:10:52 2461200.88255 19.32 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
308066 2026-06-11 10:25:18 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 14:32:38.258 +27:00:17.71 2026-06-10 23:54:06.624 16.307 wide-ATLAS PSN ATLAS26hbl ATLAS N
308031 2026-06-11 02:19:11 GOTO_bot D. O'Neill, J. Mills, K. Ackley et al. GOTO GOTO 14:32:38.259 +27:00:17.77 2026-06-10 23:58:40.512 16.66 L-GOTO Other GOTO26fua GOTO N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
24009 2026-06-11 18:22:32 GOTO_bot 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. GOTO Afterglow 0.473 1 GOTO 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.
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
24015 2026-06-11 02:18:15 NOT / ALFOSC J. Mills, M. Pursiainen, D. O'Neill GOTO tns_2026owq_2461202.596005_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 308066 of Group ATLAS
Previous RA, DEC: 14:32:38.259, +27:00:17.77 (218.159414, +27.004935)
Updated RA, DEC: 14:32:38.258, +27:00:17.71 (218.15941, +27.00492)