RA/DEC (2000)
15:46:40.667 +12:08:52.62
236.669447899 +12.1479507148
Type
SN II
Redshift
0.03403
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-03-19 09:59:37.003
TNS AT
Y
Public
Y
Discovery Mag
19.771
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_2026gai - 2026-03-30 14:24:00 ANU-2.3m / WiFeS (DEBASS)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
 ▌GOTO-S_GOTO-3_L
 ▌PS2_GPC2_w
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌GOTO-N_GOTO-1_L
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌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
23402 2026-03-30 14:24:00 ANU-2.3m / WiFeS 1200 Robotic B. Martin DEBASS tns_2026gai_2026-03-30.6_ANU-2.3m_WiFeS_DEBASS.dat tns_2026gai_2026-03-30.6_ANU-2.3m_WiFeS_DEBASS.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-03-17 04:19:55 - 2026-03-17 04:19:55 2461116.6805 - 2461116.6805 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
568830 2026-03-17 04:19:55 2461116.6805 19.78 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-S_GOTO-3 2026-03-24 17:09:26 - 2026-03-24 17:09:26 2461124.214876 - 2461124.214876 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
569866 2026-03-24 17:09:26 2461124.214876 18.87 0.06 ABMag L-GOTO GOTO-S_GOTO-3 180
w-P1 PS2_GPC2 2026-04-19 14:00:21 - 2026-04-19 14:00:21 2461150.08358 - 2461150.08358 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577993 2026-04-19 14:00:21 2461150.08358 18.72 0.03 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-CHL_ATLAS-04 2026-03-20 07:37:47 - 2026-03-20 07:37:47 2461119.81791 - 2461119.81791 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
568831 2026-03-20 07:37:47 2461119.81791 19.091 0.142 19.57 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
L-GOTO GOTO-N_GOTO-1 2026-03-16 04:21:50 - 2026-03-16 04:21:50 2461115.681831 - 2461115.681831 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
569865 2026-03-16 04:21:50 2461115.681831 20 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
BG-q-BlackGem BG2_BlackGEM-Cam2 2026-03-17 08:48:06 - 2026-03-24 06:05:01 2461116.8667361 - 2461123.7534838 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
585923 2026-03-24 06:05:01 2461123.7534838 18.94 0.07 20.46 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic
585922 2026-03-17 08:48:06 2461116.8667361 20.75 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2026-03-19 11:28:16 - 2026-03-19 11:28:16 2461118.977963 - 2461118.977963 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
566040 2026-03-19 11:28:16 2461118.977963 19.5228 0.119319 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2026-03-18 12:06:11 - 2026-03-19 09:59:37 2461118.004294 - 2461118.9164005 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
566039 2026-03-19 09:59:37 2461118.9164005 19.771 0.191807 ABMag g-ZTF P48_ZTF-Cam
569730 2026-03-19 09:59:37 2461118.9164005 19.771 0.191807 20.4204 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
566038 2026-03-18 12:06:11 2461118.004294 20.9295 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
569729 2026-03-18 12:06:11 2461118.004294 20.5144 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
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
305525 2026-05-27 14:14:30 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 15:46:40.668 +12:08:52.41 2026-03-24 06:05:01.000 18.94 BG-q-BlackGem PSN BGEM J154640.67+120852.4 BlackGEM N
301493 2026-04-25 19:20:33 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 15:46:40.667 +12:08:52.62 2026-04-19 14:00:21.312 18.72 w-P1 PSN PS26bdc Pan-STARRS N
297236 2026-03-25 11:47:17 GOTO_bot G. Ramsay, M. Kennedy, K. Ackley et al. GOTO GOTO 15:46:40.662 +12:08:52.88 2026-03-24 17:09:25.632 18.87 L-GOTO Other GOTO26cjx GOTO N
297178 2026-03-24 19:46:42 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 15:46:40.671 +12:08:52.71 2026-03-19 09:59:37.003 19.771 g-ZTF PSN ZTF26aanfqhc ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aanfqhc N
296782 2026-03-20 12:33:00 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 15:46:40.702 +12:08:52.99 2026-03-20 07:37:47.424 19.091 cyan-ATLAS PSN ATLAS26ddk ATLAS N
295071 2026-03-19 14:23:34 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 15:46:40.667 +12:08:52.64 2026-03-19 09:59:37.003 19.771 g-ZTF PSN ZTF26aanfqhc ZTF 2026TNSTR1186....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
23400 2026-03-31 06:50:25 Bailey Martin B. Martin (ANU), C. Lidman (ANU), D. Brout (Boston University), K. Auchettl (University of Melbourne/UCSC), P. Armstrong (ANU), D. Cao (ANU), L. Rauf (ANU), and B. P. Schmidt (ANU) DEBASS SN II 0.03403 1 1 DEBASS Classified with superfit. The best fitting spectrum is SN 1980K, a Type II. 2026TNSCR1379....1M
Related files
File Comments Last Modified (UT) Modified By
tns_2026gai_atrep_23400_DEBASS.pdf The best fitting spectrum from superfit. 2026-03-31 06:50:25 Bailey Martin
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
23402 2026-03-30 14:24:00 ANU-2.3m / WiFeS 1200 Robotic B. Martin DEBASS tns_2026gai_2026-03-30.6_ANU-2.3m_WiFeS_DEBASS.dat tns_2026gai_2026-03-30.6_ANU-2.3m_WiFeS_DEBASS.fits Object

Comments

TNS
System

Sat, 04/25/2026 - 19:20

Object coordinates updated

Object coordinates updated according to AT-report 301493 of Group Pan-STARRS
Previous RA, DEC: 15:46:40.671, +12:08:52.71 (236.66946411111, +12.147975433333)
Updated RA, DEC: 15:46:40.667, +12:08:52.62 (236.669447899, +12.1479507148)

TNS
System

Tue, 03/24/2026 - 19:46

Object coordinates updated

Object coordinates updated according to AT-report 297178 of Group ZTF
Previous RA, DEC: 15:46:40.667, +12:08:52.64 (236.669445, +12.1479562)
Updated RA, DEC: 15:46:40.671, +12:08:52.71 (236.66946411111, +12.147975433333)