RA/DEC (2000)
17:06:28.271 +39:42:12.97
256.6177967 +39.7036017
Type
SN Ia
Redshift
0.08
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-06-15 00:44:03.840
TNS AT
Y
Public
Y
Discovery Mag
19.44
Filter
L-GOTO
Reporter/s
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, D. O'Neill, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026per - 2026-06-17 04:10:00 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

 ▌GOTO-N_GOTO-2_L
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_cyan
   
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
24084 2026-06-17 04:10:00 NOT / ALFOSC J. Mills, D. O'Neill, M. Pursiainen GOTO tns_2026per_2461208.673611_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2026-06-15 00:44:04 - 2026-06-15 00:44:04 2461206.530598 - 2461206.530598 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
591782 2026-06-15 00:44:04 2461206.530598 19.44 0.14 ABMag L-GOTO GOTO-N_GOTO-2 180
L-GOTO GOTO-N_GOTO-1 2026-06-09 03:45:10 - 2026-06-09 03:45:10 2461200.656365 - 2461200.656365 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
591781 2026-06-09 03:45:10 2461200.656365 20.2 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-06-10 09:13:37 - 2026-06-10 09:13:37 2461201.884456 - 2461201.884456 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
591792 2026-06-10 09:13:37 2461201.884456 20.6078 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-06-11 06:47:17 - 2026-06-15 06:45:02 2461202.7828356 - 2461206.7812731 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
591794 2026-06-15 06:45:02 2461206.7812731 19.7082 0.118685 ABMag g-ZTF P48_ZTF-Cam
591793 2026-06-11 06:47:17 2461202.7828356 20.9409 0.160602 ABMag g-ZTF P48_ZTF-Cam
cyan-ATLAS ATLAS-MLO_ATLAS-01 2026-06-14 11:43:59 - 2026-06-15 10:13:43 2461205.98888 - 2461206.92619 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
592258 2026-06-15 10:13:43 2461206.92619 19.394 0.151 19.61 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
592257 2026-06-14 11:43:59 2461205.98888 19.44 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 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
308699 2026-06-16 10:53:31 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 17:06:28.261 +39:42:12.29 2026-06-15 10:13:42.816 19.394 cyan-ATLAS PSN ATLAS26hgi ATLAS N
308448 2026-06-15 09:53:37 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 17:06:28.271 +39:42:12.97 2026-06-11 06:47:16.995 20.9409 g-ZTF PSN ZTF26abbtxda ZTF N
308443 2026-06-15 03:34:30 GOTO_bot J. Mills, K. Ackley, M. Dyer et al. GOTO GOTO 17:06:28.286 +39:42:12.97 2026-06-15 00:44:03.840 19.44 L-GOTO Other GOTO26fyn GOTO 2026TNSTR2529....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
24078 2026-06-17 08:40:54 GOTO_bot J. Mills, D. O'Neill, M. Pursiainen, T. Killestein, J. Lyman, 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, R. Starling, B. Gompertz, B. Godson, A. Kumar, on behalf of GOTO collaboration GOTO SN Ia 0.08 1 GOTO Redshift estimated from template matching. 2026TNSCR2578....1M
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
24084 2026-06-17 04:10:00 NOT / ALFOSC J. Mills, D. O'Neill, M. Pursiainen GOTO tns_2026per_2461208.673611_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Mon, 06/15/2026 - 09:53

Object coordinates updated

Object coordinates updated according to AT-report 308448 of Group ZTF
Previous RA, DEC: 17:06:28.286, +39:42:12.97 (256.617857, +39.703603)
Updated RA, DEC: 17:06:28.271, +39:42:12.97 (256.6177967, +39.7036017)