RA/DEC (2000)
09:46:42.035 -14:52:03.22
146.6751453 -14.867561
Type
SN II
Redshift
0.014033
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-04-23 08:58:39.648
TNS AT
Y
Public
Y
Discovery Mag
18.69
Filter
L-GOTO
Reporter/s
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_2026kmo - 2026-04-27 21:04:08 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-S_GOTO-4_L
 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-STH_ATLAS-03_orange
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_g
   
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
23568 2026-04-27 21:04:08 NOT / ALFOSC Roar Holmberg Rasmussen GOTO tns_2026kmo_2026-04-27_21-04-08.490_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-04-22 09:09:18 - 2026-04-22 09:09:18 2461152.881464 - 2461152.881464 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577306 2026-04-22 09:09:18 2461152.881464 20 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2026-04-23 08:58:40 - 2026-04-23 08:58:40 2461153.874066 - 2461153.874066 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577307 2026-04-23 08:58:40 2461153.874066 18.69 0.08 ABMag L-GOTO GOTO-S_GOTO-3 135
orange-ATLAS ATLAS-STH_ATLAS-03 2026-04-22 19:47:09 - 2026-04-23 20:12:07 2461153.32441 - 2461154.34175 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577563 2026-04-23 20:12:07 2461154.34175 18.461 0.17 19.3 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
577562 2026-04-22 19:47:09 2461153.32441 19.36 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
i-ZTF P48_ZTF-Cam 2026-04-16 03:41:58 - 2026-04-24 03:47:22 2461146.6541435 - 2461154.6578935 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577751 2026-04-24 03:47:22 2461154.6578935 18.3334 0.101745 ABMag i-ZTF P48_ZTF-Cam
577750 2026-04-16 03:41:58 2461146.6541435 19.9318 ABMag i-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-04-25 04:27:40 - 2026-04-25 04:27:40 2461155.6858796 - 2461155.6858796 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577752 2026-04-25 04:27:40 2461155.6858796 17.8845 0.0853758 ABMag g-ZTF P48_ZTF-Cam
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
301378 2026-04-25 04:38:32 BTSbot_bot Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF ZTF ZTF 09:46:42.035 -14:52:03.22 2026-04-24 03:47:21.998 18.3334 i-ZTF PSN ZTF26aatzane ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
301279 2026-04-24 07:56:07 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 09:46:42.040 -14:52:02.95 2026-04-23 20:12:07.200 18.461 orange-ATLAS PSN ATLAS26esw ATLAS N
301166 2026-04-23 15:37:08 GOTO_bot K. Ackley, M. Dyer, J. Lyman et al. GOTO GOTO 09:46:42.055 -14:52:03.10 2026-04-23 08:58:39.648 18.69 L-GOTO Other GOTO26drc GOTO 2026TNSTR1782....1A N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23565 2026-04-28 07:37:21 Miika Pursiainen M. Pursiainen, R. Kotak, J. Lyman, M. Magee, K. Ackley, M. J. Dyer, K. Ulaczyk, S. Belkin, D. Steeghs, D. K. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. P. Breton, L. K. Nuttall, D. Pollacco, J. Casares Vel'azquez, T. Killestein, A. Kumar, D. O'Neill on behalf of GOTO collaboration GOTO SN II 0.014033 1 GOTO Good template matches to young type II SNe at the redshift of the host galaxy (0.014033, NED). 2026TNSCR1860....1P
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
23568 2026-04-27 21:04:08 NOT / ALFOSC Roar Holmberg Rasmussen GOTO tns_2026kmo_2026-04-27_21-04-08.490_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Sat, 04/25/2026 - 04:38

Object coordinates updated

Object coordinates updated according to AT-report 301378 of Group ZTF
Previous RA, DEC: 09:46:42.040, -14:52:02.95 (146.675168, -14.867487)
Updated RA, DEC: 09:46:42.035, -14:52:03.22 (146.6751453, -14.867561)

TNS
System

Fri, 04/24/2026 - 07:56

Object coordinates updated

Object coordinates updated according to AT-report 301279 of Group ATLAS
Previous RA, DEC: 09:46:42.055, -14:52:03.10 (146.675229, -14.867529)
Updated RA, DEC: 09:46:42.040, -14:52:02.95 (146.675168, -14.867487)