RA/DEC (2000)
16:49:33.488 +53:07:29.50
252.3895333 +53.1248603
Type
SN II
Redshift
0.0335
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-04-22 03:19:45.408
TNS AT
Y
Public
Y
Discovery Mag
18.92
Filter
L-GOTO
Reporter/s
J. Lyman, G. Ramsay, K. Ackley, M. Dyer, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, 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_2026kmp - 2026-05-22 03:49:12 LT / SPRAT (ZTF)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
 ▌P48_ZTF-Cam_r
 ▌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
23803 2026-05-22 03:49:12 LT / SPRAT Jacob Wise, Daniel Perley, K-Ryan Hinds, Aleksandra Bochenek, Zoe McGrath, Yogesh Wagh Jacob Wise ZTF tns_2026kmp_2026-05-22_03-49-12.235_LT_SPRAT_ZTF.spec Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2026-04-16 02:45:05 - 2026-04-22 03:19:45 2461146.614637 - 2461152.638716 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577317 2026-04-22 03:19:45 2461152.638716 18.92 0.09 ABMag L-GOTO GOTO-N_GOTO-2 180
577316 2026-04-16 02:45:05 2461146.614637 19.9 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-04-17 10:44:15 - 2026-04-17 10:44:15 2461147.9473958 - 2461147.9473958 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577676 2026-04-17 10:44:15 2461147.9473958 20.5952 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-04-21 07:54:51 - 2026-04-24 10:29:28 2461151.8297569 - 2461154.9371296 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577678 2026-04-24 10:29:28 2461154.9371296 18.7924 0.0778002 ABMag g-ZTF P48_ZTF-Cam
577677 2026-04-21 07:54:51 2461151.8297569 18.9728 0.111474 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
301337 2026-04-24 11:43:35 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 16:49:33.488 +53:07:29.50 2026-04-21 07:54:50.996 18.9728 g-ZTF PSN ZTF26aatroji ZTF N
301171 2026-04-23 15:59:25 GOTO_bot J. Lyman, G. Ramsay, K. Ackley et al. GOTO GOTO 16:49:33.493 +53:07:29.68 2026-04-22 03:19:45.408 18.92 L-GOTO Other GOTO26dqb GOTO 2026TNSTR1781....1L N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23799 2026-05-22 11:28:33 Jacob Wise Jacob Wise (LJMU), Daniel Perley (LJMU), Aleksandra Bochenek (LJMU), Zoe McGrath (LJMU), Yogesh Wagh (LJMU), K-Ryan Hinds (Caltech) ZTF SN II 0.0335 1 ZTF The presence of broad H-alpha emission, combined with the transient's reddening lightcurve on a plateau at M_r ~ -17 in ZTF, indicates that this is a SN II. 2026TNSCR2238....1W
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
23803 2026-05-22 03:49:12 LT / SPRAT Jacob Wise, Daniel Perley, K-Ryan Hinds, Aleksandra Bochenek, Zoe McGrath, Yogesh Wagh Jacob Wise ZTF tns_2026kmp_2026-05-22_03-49-12.235_LT_SPRAT_ZTF.spec Object

Comments

TNS
System

Fri, 04/24/2026 - 11:43

Object coordinates updated

Object coordinates updated according to AT-report 301337 of Group ZTF
Previous RA, DEC: 16:49:33.493, +53:07:29.68 (252.389554, +53.124911)
Updated RA, DEC: 16:49:33.488, +53:07:29.50 (252.3895333, +53.1248603)