RA/DEC (2000)
11:45:04.582 +19:58:15.60
176.269091762 +19.9710010873
Type
SN II
Redshift
0.017
Discovery ReportClassification Report
Related AstroNotes: 2026-98, 2026-99
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-04-04 09:37:18.624
TNS AT
Y
Public
Y
Discovery Mag
18.182
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026ihi - 2026-04-06 14:40:43 XLT / BFOSC (AUTOGLASS)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

 ▌WFST_WFST-WFC_r
 ▌GOTO-N_GOTO-2_L
 ▌PS2_GPC2_i
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌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
23432 2026-04-06 14:40:43 XLT / BFOSC 3600 Yiming Mao, Yu Zhang, Junjie Jin, Beichuan Wang, Hong Wu Yiming Mao AUTOGLASS tns_2026ihi_2026-04-06_14-40-43_XLT_BFOSC_AUTOGLASS.DAT Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-WFST WFST_WFST-WFC 2026-03-25 17:19:41 - 2026-04-02 19:00:29 2461125.222 - 2461133.292 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576006 2026-04-02 19:00:29 2461133.292 20.52 0.11 ABMag r-WFST WFST_WFST-WFC 30
576005 2026-03-25 17:19:41 2461125.222 19.2 ABMag r-WFST WFST_WFST-WFC 30 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2026-04-02 22:22:48 - 2026-04-06 22:11:44 2461133.432503 - 2461137.424811 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572946 2026-04-06 22:11:44 2461137.424811 18.31 0.05 ABMag L-GOTO GOTO-N_GOTO-2 180
572945 2026-04-02 22:22:48 2461133.432503 18.2 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
i-P1 PS2_GPC2 2026-04-07 10:27:27 - 2026-04-07 10:27:27 2461137.93573 - 2461137.93573 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
574236 2026-04-07 10:27:27 2461137.93573 17.97 0.02 20.7 ABMag i-P1 PS2_GPC2 45 Robot
BG-q-BlackGem BG4_BlackGEM-Cam4 2026-04-07 01:48:16 - 2026-04-07 01:48:16 2461137.5751852 - 2461137.5751852 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573088 2026-04-07 01:48:16 2461137.5751852 18.17 0.05 20.27 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-12-30 08:20:19 - 2025-12-30 08:20:19 2461039.8474421 - 2461039.8474421 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573087 2025-12-30 08:20:19 2461039.8474421 20.72 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2026-04-05 04:17:33 - 2026-04-09 04:37:54 2461135.6788542 - 2461139.6929861 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573741 2026-04-09 04:37:54 2461139.6929861 17.8351 0.0489417 ABMag r-ZTF P48_ZTF-Cam
573740 2026-04-05 04:17:33 2461135.6788542 18.4145 0.0713577 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2026-03-27 08:45:33 - 2026-03-27 08:45:33 2461126.8649653 - 2461126.8649653 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573739 2026-03-27 08:45:33 2461126.8649653 20.1926 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-04-03 10:15:03 - 2026-04-04 09:37:19 2461133.92712 - 2461134.90091 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572201 2026-04-04 09:37:19 2461134.90091 18.182 0.11 19 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
572200 2026-04-03 10:15:03 2461133.92712 18.41 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
300497 2026-04-17 14:12:10 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 11:45:04.580 +19:58:15.55 2026-04-02 19:00:28.800 20.52 r-WFST PSN WFST260402oljm WFST N
299578 2026-04-10 10:29:10 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 11:45:04.582 +19:58:15.60 2026-04-07 10:27:27.072 17.97 i-P1 PSN PS26axl Pan-STARRS N
299316 2026-04-09 06:42:44 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 11:45:04.595 +19:58:15.62 2026-04-05 04:17:33.002 18.4145 r-ZTF PSN ZTF26aardkdm ZTF N
298996 2026-04-07 07:54:02 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 11:45:04.574 +19:58:15.72 2026-04-07 01:48:16.000 18.17 BG-q-BlackGem PSN BGEM J114504.57+195815.7 BlackGEM N
298938 2026-04-06 23:12:16 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 11:45:04.577 +19:58:15.56 2026-04-06 22:11:43.584 18.31 L-GOTO Other GOTO26cvs GOTO N
298491 2026-04-04 14:56:58 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:45:04.587 +19:58:15.81 2026-04-04 09:37:18.624 18.182 orange-ATLAS PSN ATLAS26dru ATLAS 2026TNSTR1414....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23430 2026-04-06 21:18:41 Yiming Mao Yiming Mao, Yu Zhang, Junjie Jin, Beichuan Wang, Hong Wu AUTOGLASS SN II 0.017 1 AUTOGLASS 2026-04-06 We suggest this transient as a Type II supernova with strong Hα emission, possibly interacting / IIn-like. 2026TNSCR1478....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
23432 2026-04-06 14:40:43 XLT / BFOSC 3600 Yiming Mao, Yu Zhang, Junjie Jin, Beichuan Wang, Hong Wu Yiming Mao AUTOGLASS tns_2026ihi_2026-04-06_14-40-43_XLT_BFOSC_AUTOGLASS.DAT Object

Comments

TNS
System

Fri, 04/10/2026 - 10:29

Object coordinates updated

Object coordinates updated according to AT-report 299578 of Group Pan-STARRS
Previous RA, DEC: 11:45:04.574, +19:58:15.72 (176.269058, +19.971033)
Updated RA, DEC: 11:45:04.582, +19:58:15.60 (176.269091762, +19.9710010873)

TNS
System

Tue, 04/07/2026 - 07:54

Object coordinates updated

Object coordinates updated according to AT-report 298996 of Group BlackGEM
Previous RA, DEC: 11:45:04.587, +19:58:15.81 (176.2691125, +19.9710575)
Updated RA, DEC: 11:45:04.574, +19:58:15.72 (176.269058, +19.971033)