RA/DEC (2000)
17:44:30.157 +39:36:51.53
266.1256535 +39.6143131
Type
SN Ia
Redshift
0.045
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-03-10 14:16:40.224
TNS AT
Y
Public
Y
Discovery Mag
19.015
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_2026fgj - 2026-03-30 08:28:11 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_g
 ▌GOTO-N_GOTO-2_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_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
23397 2026-03-30 08:28:11 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026fgj_2026-03-30_08-28-11.433893_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-03-09 05:34:49 - 2026-03-09 05:34:49 2461108.73251 - 2461108.73251 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
563878 2026-03-09 05:34:49 2461108.73251 19.69 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
g-WFST WFST_WFST-WFC 2026-03-30 20:45:36 - 2026-03-30 20:45:36 2461130.365 - 2461130.365 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577965 2026-03-30 20:45:36 2461130.365 17.95 0.01 ABMag g-WFST WFST_WFST-WFC 30
L-GOTO GOTO-N_GOTO-2 2026-03-09 05:58:13 - 2026-03-10 05:58:06 2461108.748762 - 2461109.748681 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
564194 2026-03-10 05:58:06 2461109.748681 19.17 0.13 ABMag L-GOTO GOTO-N_GOTO-2 180
564193 2026-03-09 05:58:13 2461108.748762 19.3 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-03-07 11:54:50 - 2026-03-17 12:16:06 2461106.996412 - 2461117.0111806 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
565449 2026-03-17 12:16:06 2461117.0111806 17.8055 0.0749624 ABMag r-ZTF P48_ZTF-Cam
565447 2026-03-07 11:54:50 2461106.996412 19.5624 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-03-07 12:27:45 - 2026-03-07 12:27:45 2461107.0192708 - 2461107.0192708 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
565448 2026-03-07 12:27:45 2461107.0192708 20.0861 0.194364 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-03-10 14:16:40 - 2026-03-10 14:16:40 2461110.09491 - 2461110.09491 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
563879 2026-03-10 14:16:40 2461110.09491 19.015 0.144 19.4 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
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
301473 2026-04-25 15:33:41 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 17:44:30.150 +39:36:51.54 2026-03-30 20:45:36.000 17.95 g-WFST PSN WFST260330arqkr WFST N
294822 2026-03-17 14:20:25 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 17:44:30.157 +39:36:51.53 2026-03-07 12:27:44.997 20.0861 g-ZTF PSN ZTF26aaljuja ZTF N
294263 2026-03-12 09:05:20 GOTO_bot M. Pursiainen, K. Ackley, M. Dyer et al. GOTO GOTO 17:44:30.161 +39:36:51.35 2026-03-10 05:58:05.952 19.17 L-GOTO PSN GOTO26bvd GOTO N
294124 2026-03-10 19:28:06 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 17:44:30.144 +39:36:51.75 2026-03-10 14:16:40.224 19.015 orange-ATLAS PSN ATLAS26cun ATLAS 2026TNSTR.999....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
23395 2026-03-30 09:16:37 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 0.045 1 ZTF 2026TNSCR1363....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
23397 2026-03-30 08:28:11 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026fgj_2026-03-30_08-28-11.433893_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 03/17/2026 - 14:20

Object coordinates updated

Object coordinates updated according to AT-report 294822 of Group ZTF
Previous RA, DEC: 17:44:30.144, +39:36:51.75 (266.1256, +39.614375)
Updated RA, DEC: 17:44:30.157, +39:36:51.53 (266.1256535, +39.6143131)