RA/DEC (2000)
17:47:43.955 +18:07:55.84
266.9331439 +18.1321779
Type
SN II
Redshift
0.04
Discovery ReportClassification Report
Related AstroNotes: 2026-142
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-05-12 08:54:13.000
TNS AT
Y
Public
Y
Discovery Mag
20.9221
Filter
g-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026mtw - 2026-05-18 06:51:38 ESO-NTT / EFOSC2-NTT (ePESSTO+)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
 ▌LAST_LAST-Cam_Clear
 ▌GOTO-N_GOTO-1_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_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
23768 2026-05-18 06:51:38 ESO-NTT / EFOSC2-NTT 900 J. Khaulsay,J. Quirola-Vásquez C. Aster ePESSTO+ tns_2026mtw_2026-05-18_06-51-38_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026mtw_2026-05-18_06-51-38_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-05-18 01:24:25 - 2026-05-18 01:24:25 2461178.55862 - 2461178.55862 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583686 2026-05-18 01:24:25 2461178.55862 18.824 0.16 20.15 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
Clear- LAST_LAST-Cam 2026-06-04 18:59:41 - 2026-06-04 20:31:01 2461196.29145 - 2461196.35487 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
588886 2026-06-04 20:31:01 2461196.35487 18.99 ABMag Clear- LAST_LAST-Cam 400
588885 2026-06-04 18:59:41 2461196.29145 19.82 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2026-05-10 01:55:43 - 2026-05-13 01:35:44 2461170.580355 - 2461173.566479 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583575 2026-05-13 01:35:44 2461173.566479 19.83 0.19 ABMag L-GOTO GOTO-N_GOTO-1 180
583574 2026-05-10 01:55:43 2461170.580355 19.8 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2026-05-19 03:31:27 - 2026-05-19 03:31:27 2461179.6468403 - 2461179.6468403 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583813 2026-05-19 03:31:27 2461179.6468403 18.93 0.08 20.21 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem BG3_BlackGEM-Cam3 2026-05-12 06:21:39 - 2026-05-12 06:21:39 2461172.7650347 - 2461172.7650347 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583812 2026-05-12 06:21:39 2461172.7650347 20.54 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic [Last non detection]
g-ZTF P48_ZTF-Cam 2026-05-08 10:35:22 - 2026-05-16 10:38:01 2461168.9412269 - 2461176.9430671 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583017 2026-05-16 10:38:01 2461176.9430671 19.2911 0.103693 ABMag g-ZTF P48_ZTF-Cam
583016 2026-05-12 08:54:13 2461172.8709838 20.9221 0.173412 ABMag g-ZTF P48_ZTF-Cam
583015 2026-05-08 10:35:22 2461168.9412269 20.7111 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2026-05-17 11:21:18 - 2026-05-17 11:21:18 2461177.97312 - 2461177.97312 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583685 2026-05-17 11:21:18 2461177.97312 19.57 ABMag cyan-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
307025 2026-06-04 21:02:52 LAST_Bot1 R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al. LAST LAST 17:47:43.894 +18:07:55.45 2026-06-04 20:31:00.768 18.99 Clear- PSN LAST N
304518 2026-05-19 07:22:02 BlackGEM_Bot1 G. Ramsay, H. Tranin, F. Stoppa et al. BlackGEM BlackGEM 17:47:43.946 +18:07:55.62 2026-05-19 03:31:27.000 18.93 BG-q-BlackGem PSN BGEM J174743.95+180755.6 BlackGEM N
304462 2026-05-18 18:28:11 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 17:47:43.923 +18:07:56.03 2026-05-18 01:24:24.768 18.824 wide-ATLAS PSN ATLAS26fzi ATLAS N
304297 2026-05-18 08:27:04 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 17:47:43.903 +18:07:55.83 2026-05-13 01:35:43.872 19.83 L-GOTO Other GOTO26evl GOTO N
303955 2026-05-16 13:04:28 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 17:47:43.955 +18:07:55.84 2026-05-12 08:54:13.000 20.9221 g-ZTF PSN ZTF26aawkrmu ZTF 2026TNSTR2132....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23764 2026-05-18 16:05:21 ePESSTOplus_Bot1 J. Khaulsay,J. Quirola-Vásquez, C. Aster, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN II 0.04 1 ePESSTO+ 2026TNSCR2164....1K
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
23768 2026-05-18 06:51:38 ESO-NTT / EFOSC2-NTT 900 J. Khaulsay,J. Quirola-Vásquez C. Aster ePESSTO+ tns_2026mtw_2026-05-18_06-51-38_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026mtw_2026-05-18_06-51-38_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

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