RA/DEC (2000)
13:08:21.774 +29:13:44.13
197.090725261 +29.2289249295
Type
SN Ia
Redshift
0.0234
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-03-13 00:06:23.616
TNS AT
Y
Public
Y
Discovery Mag
19.15
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_2026fmh - 2026-03-15 11:55:19 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
 ▌WFST_WFST-WFC_r
 ▌LAST_LAST-Cam_Clear
 ▌PS2_GPC2_i
 ▌GOTO-N_GOTO-1_L
 ▌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
23218 2026-03-15 11:55:19 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026fmh_2026-03-15_11-55-19.221994_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-03-14 01:41:31 - 2026-03-14 01:41:31 2461113.5705 - 2461113.5705 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
564679 2026-03-14 01:41:31 2461113.5705 18.185 0.067 19.62 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
r-WFST WFST_WFST-WFC 2026-03-13 17:09:36 - 2026-03-13 17:09:36 2461113.215 - 2461113.215 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
571146 2026-03-13 17:09:36 2461113.215 18.66 0.04 ABMag r-WFST WFST_WFST-WFC 30
Clear- LAST_LAST-Cam 2024-03-06 00:01:32 - 2026-05-07 18:06:37 2460375.50106 - 2461168.2546 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580166 2026-05-07 18:06:37 2461168.2546 18.71 ABMag Clear- LAST_LAST-Cam 400
580165 2024-03-06 00:01:32 2460375.50106 21.6 ABMag Clear- LAST_LAST-Cam 2400 [Last non detection]
i-P1 PS2_GPC2 2026-03-31 13:48:49 - 2026-03-31 13:48:49 2461131.07557 - 2461131.07557 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572327 2026-03-31 13:48:49 2461131.07557 16.84 0.02 20.7 ABMag i-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2026-03-12 01:29:44 - 2026-03-13 00:06:24 2461111.562318 - 2461112.50444 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
564526 2026-03-13 00:06:24 2461112.50444 19.15 0.1 ABMag L-GOTO GOTO-N_GOTO-1 180
564525 2026-03-12 01:29:44 2461111.562318 20 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-03-08 11:58:00 - 2026-03-15 09:04:15 2461107.9986111 - 2461114.8779514 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
564882 2026-03-15 09:04:15 2461114.8779514 17.8715 0.0509402 ABMag r-ZTF P48_ZTF-Cam
564880 2026-03-08 11:58:00 2461107.9986111 19.9688 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-03-11 09:34:39 - 2026-03-11 09:34:39 2461110.8990625 - 2461110.8990625 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
564881 2026-03-11 09:34:39 2461110.8990625 20.6317 0.176989 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-03-10 13:35:41 - 2026-03-10 13:35:41 2461110.06645 - 2461110.06645 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
564678 2026-03-10 13:35:41 2461110.06645 19.24 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
302605 2026-05-07 18:29:36 LAST_Bot1 R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al. LAST LAST 13:08:21.724 +29:13:43.97 2026-05-07 18:06:37.440 18.71 Clear- PSN LAST N
298555 2026-04-05 07:25:39 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 13:08:21.774 +29:13:44.13 2026-03-31 13:48:49.248 16.84 i-P1 PSN PS26asd Pan-STARRS N
297883 2026-03-29 12:11:43 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 13:08:21.770 +29:13:44.14 2026-03-13 17:09:36.000 18.66 r-WFST PSN WFST260313anxpc WFST N
294556 2026-03-15 11:10:33 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 13:08:21.777 +29:13:44.36 2026-03-11 09:34:38.999 20.6317 g-ZTF PSN ZTF26aakzdgt ZTF N
294473 2026-03-14 14:13:27 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 13:08:21.778 +29:13:44.38 2026-03-14 01:41:31.200 18.185 wide-ATLAS PSN ATLAS26cya ATLAS N
294404 2026-03-14 03:51:40 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 13:08:21.805 +29:13:45.00 2026-03-13 00:06:23.616 19.15 L-GOTO Other GOTO26bwh GOTO 2026TNSTR1071....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
23217 2026-03-15 20:24:17 ZTF_Bot1 C. Fremling and J. Purdum on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.0234 1 ZTF 2026TNSCR1101....1F
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
23218 2026-03-15 11:55:19 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026fmh_2026-03-15_11-55-19.221994_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sun, 04/05/2026 - 07:25

Object coordinates updated

Object coordinates updated according to AT-report 298555 of Group Pan-STARRS
Previous RA, DEC: 13:08:21.777, +29:13:44.36 (197.0907384, +29.2289899)
Updated RA, DEC: 13:08:21.774, +29:13:44.13 (197.090725261, +29.2289249295)

TNS
System

Sun, 03/15/2026 - 11:10

Object coordinates updated

Object coordinates updated according to AT-report 294556 of Group ZTF
Previous RA, DEC: 13:08:21.778, +29:13:44.38 (197.090741667, +29.228995)
Updated RA, DEC: 13:08:21.777, +29:13:44.36 (197.0907384, +29.2289899)

TNS
System

Sat, 03/14/2026 - 14:13

Object coordinates updated

Object coordinates updated according to AT-report 294473 of Group ATLAS
Previous RA, DEC: 13:08:21.805, +29:13:45.00 (197.090854, +29.229166)
Updated RA, DEC: 13:08:21.778, +29:13:44.38 (197.090741667, +29.228995)