RA/DEC (2000)
16:41:19.637 +37:39:55.06
250.331821885 +37.6652957093
Type
SN Ia
Redshift
0.064
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-03-09 04:25:26.112
TNS AT
Y
Public
Y
Discovery Mag
19.179
Filter
wide-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_2026fen - 2026-03-14 12:26:38 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
 ▌LAST_LAST-Cam_Clear
 ▌GOTO-N_GOTO-2_L
 ▌PS2_GPC2_y
 ▌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
23213 2026-03-14 12:26:38 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026fen_2026-03-14_12-26-38.274732_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 04:25:26 - 2026-03-09 04:25:26 2461108.68433 - 2461108.68433 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
563708 2026-03-09 04:25:26 2461108.68433 19.179 0.116 19.64 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
g-WFST WFST_WFST-WFC 2026-04-01 21:08:38 - 2026-04-01 21:08:38 2461132.381 - 2461132.381 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572147 2026-04-01 21:08:38 2461132.381 18.16 0.02 ABMag g-WFST WFST_WFST-WFC 30
Clear- LAST_LAST-Cam 2024-07-12 22:18:35 - 2026-04-07 23:57:09 2460504.42957 - 2461138.49802 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
573418 2026-04-07 23:57:09 2461138.49802 18.65 ABMag Clear- LAST_LAST-Cam 400
573417 2024-07-12 22:18:35 2460504.42957 20.76 ABMag Clear- LAST_LAST-Cam 3200 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2026-03-08 05:10:44 - 2026-03-09 05:02:01 2461107.715789 - 2461108.709732 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
563801 2026-03-09 05:02:01 2461108.709732 19.14 0.15 ABMag L-GOTO GOTO-N_GOTO-2 180
563800 2026-03-08 05:10:44 2461107.715789 19.5 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
y-P1 PS2_GPC2 2026-03-31 13:36:02 - 2026-03-31 13:36:02 2461131.06669 - 2461131.06669 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
571527 2026-03-31 13:36:02 2461131.06669 18.61 0.13 18.3 ABMag y-P1 PS2_GPC2 27 Robot
r-ZTF P48_ZTF-Cam 2026-03-06 10:48:54 - 2026-03-06 10:48:54 2461105.950625 - 2461105.950625 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
564030 2026-03-06 10:48:54 2461105.950625 19.9404 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-03-06 12:10:40 - 2026-03-11 11:27:01 2461106.0074074 - 2461110.9770949 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
564032 2026-03-11 11:27:01 2461110.9770949 18.5018 0.0820702 ABMag g-ZTF P48_ZTF-Cam
564031 2026-03-06 12:10:40 2461106.0074074 19.8475 0.206953 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-03-08 14:14:54 - 2026-03-08 14:14:54 2461108.09368 - 2461108.09368 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
563707 2026-03-08 14:14:54 2461108.09368 19.25 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
299173 2026-04-08 02:46:38 LAST_Bot1 R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al. LAST LAST 16:41:19.662 +37:39:55.68 2026-04-07 23:57:08.928 18.65 Clear- PSN LAST N
298447 2026-04-04 13:59:33 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 16:41:19.640 +37:39:55.12 2026-04-01 21:08:38.400 18.16 g-WFST PSN WFST260401ydss WFST N
298096 2026-03-31 18:46:33 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 16:41:19.637 +37:39:55.06 2026-03-31 13:36:02.016 18.61 y-P1 PSN PS26aro Pan-STARRS N
294189 2026-03-11 13:00:28 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 16:41:19.645 +37:39:55.12 2026-03-06 12:10:39.999 19.8475 g-ZTF PSN ZTF26aajqavf ZTF N
294082 2026-03-10 11:25:55 GOTO_bot D. O'Neill, M. Pursiainen, K. Ackley et al. GOTO GOTO 16:41:19.630 +37:39:54.81 2026-03-09 05:02:00.672 19.14 L-GOTO PSN GOTO26btn GOTO N
294034 2026-03-09 22:13:37 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 16:41:19.632 +37:39:55.11 2026-03-09 04:25:26.112 19.179 wide-ATLAS PSN ATLAS26cta ATLAS 2026TNSTR.979....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
23212 2026-03-14 13:23:04 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 0.064 1 ZTF 2026TNSCR1085....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
23213 2026-03-14 12:26:38 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026fen_2026-03-14_12-26-38.274732_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 03/31/2026 - 18:46

Object coordinates updated

Object coordinates updated according to AT-report 298096 of Group Pan-STARRS
Previous RA, DEC: 16:41:19.645, +37:39:55.12 (250.3318531, +37.6653114)
Updated RA, DEC: 16:41:19.637, +37:39:55.06 (250.331821885, +37.6652957093)

TNS
System

Wed, 03/11/2026 - 13:00

Object coordinates updated

Object coordinates updated according to AT-report 294189 of Group ZTF
Previous RA, DEC: 16:41:19.632, +37:39:55.11 (250.331801429, +37.6653071429)
Updated RA, DEC: 16:41:19.645, +37:39:55.12 (250.3318531, +37.6653114)