RA/DEC (2000)
11:57:21.622 +08:17:50.61
179.34009279286 +8.2973923
Type
SN Ia
Redshift
0.07792
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-05-17 22:01:13.728
TNS AT
Y
Public
Y
Discovery Mag
20.12
Filter
L-GOTO
Reporter/s
D. O'Neill, 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, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026mys - 2026-05-25 05:20:48 P60 / SEDM (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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌GOTO-N_GOTO-1_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
24000 2026-05-25 05:20:48 P60 / SEDM 2700 SEDmRobot ZTF tns_2026mys_2026-05-25_05-20-48.443445_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-05-20 22:27:43 - 2026-05-20 22:27:43 2461181.43591 - 2461181.43591 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584559 2026-05-20 22:27:43 2461181.43591 19.62 0.126 20.33 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
cyan-ATLAS ATLAS-CHL_ATLAS-04 2026-05-20 02:04:39 - 2026-05-20 02:04:39 2461180.58656 - 2461180.58656 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584558 2026-05-20 02:04:39 2461180.58656 19.66 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2026-05-12 21:46:41 - 2026-05-17 22:01:14 2461173.40742 - 2461178.41752 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583591 2026-05-17 22:01:14 2461178.41752 20.12 0.18 ABMag L-GOTO GOTO-N_GOTO-1 180
583590 2026-05-12 21:46:41 2461173.40742 20.3 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-05-16 05:17:12 - 2026-05-16 05:17:53 2461176.7202778 - 2461176.7207523 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584278 2026-05-16 05:17:53 2461176.7207523 20.6529 0.171567 ABMag r-ZTF P48_ZTF-Cam
584277 2026-05-16 05:17:12 2461176.7202778 20.4026 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-05-15 06:20:37 - 2026-05-21 04:11:26 2461175.7643171 - 2461181.6746065 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584279 2026-05-21 04:11:26 2461181.6746065 19.4311 0.135605 ABMag g-ZTF P48_ZTF-Cam
588109 2026-05-16 06:10:29 2461176.7572801 20.7494 0.309855 20.4917 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
588108 2026-05-15 06:20:37 2461175.7643171 20.3922 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
306661 2026-05-31 18:51:50 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 11:57:21.622 +08:17:50.61 2026-05-16 06:10:29.001 20.7494 g-ZTF PSN ZTF26aaxjsgp ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aaxjsgp N
304874 2026-05-22 10:12:55 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:57:21.637 +08:17:50.61 2026-05-20 22:27:42.624 19.62 wide-ATLAS PSN ATLAS26gek ATLAS N
304744 2026-05-21 05:30:06 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 11:57:21.623 +08:17:50.60 2026-05-16 05:17:52.998 20.6529 r-ZTF PSN ZTF26aaxjsgp ZTF N
304305 2026-05-18 08:31:45 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 11:57:21.621 +08:17:50.78 2026-05-17 22:01:13.728 20.12 L-GOTO Other GOTO26exb GOTO 2026TNSTR2157....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23994 2026-06-10 17:44:53 ZTF_Bot1 K. Hinds, C. Fremling, J. Castaneda Jaimes, T. du Laz, T. Culino, M. Kasliwal (Caltech), and M. Coughlin (UoM) on behalf of the ZTF LIONS collaboration ZTF SN Ia 0.07792 1 ZTF 2026TNSCR2440....1H
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
24000 2026-05-25 05:20:48 P60 / SEDM 2700 SEDmRobot ZTF tns_2026mys_2026-05-25_05-20-48.443445_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sun, 05/31/2026 - 18:51

Object coordinates updated

Object coordinates updated according to AT-report 306661 of Group ZTF
Previous RA, DEC: 11:57:21.623, +08:17:50.60 (179.3400973, +8.2973887)
Updated RA, DEC: 11:57:21.622, +08:17:50.61 (179.34009279286, +8.2973923)

TNS
System

Thu, 05/21/2026 - 05:30

Object coordinates updated

Object coordinates updated according to AT-report 304744 of Group ZTF
Previous RA, DEC: 11:57:21.621, +08:17:50.78 (179.340086, +8.29744)
Updated RA, DEC: 11:57:21.623, +08:17:50.60 (179.3400973, +8.2973887)