RA/DEC (2000)
11:27:42.580 +54:15:47.06
171.9274174 +54.263072
Type
SN Ia
Redshift
0.049
Discovery ReportClassification Report
Related AstroNotes: 2026-99
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-04-02 06:29:16.002
TNS AT
Y
Public
Y
Discovery Mag
19.6236
Filter
r-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026iei - 2026-04-17 08:31:37 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

 ▌WFST_WFST-WFC_r
 ▌LAST_LAST-Cam_Clear
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌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
23485 2026-04-17 08:31:37 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026iei_2026-04-17_08-31-37.218530_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-WFST WFST_WFST-WFC 2026-03-28 19:45:07 - 2026-04-04 19:09:07 2461128.323 - 2461135.298 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
574386 2026-04-04 19:09:07 2461135.298 18.65 0.02 ABMag r-WFST WFST_WFST-WFC 30
574385 2026-03-28 19:45:07 2461128.323 21.75 ABMag r-WFST WFST_WFST-WFC 30 [Last non detection]
Clear- LAST_LAST-Cam 2024-03-07 22:00:47 - 2026-04-10 18:57:07 2460377.41721 - 2461141.28966 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
574498 2026-04-10 18:57:07 2461141.28966 17.78 ABMag Clear- LAST_LAST-Cam 400
574497 2024-03-07 22:00:47 2460377.41721 20.57 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-04-02 06:29:16 - 2026-04-04 07:53:47 2461132.7703241 - 2461134.8290162 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572005 2026-04-04 07:53:47 2461134.8290162 18.6841 0.110084 ABMag r-ZTF P48_ZTF-Cam
572004 2026-04-02 06:29:16 2461132.7703241 19.6236 0.126638 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2026-03-30 05:24:20 - 2026-03-30 05:24:20 2461129.7252315 - 2461129.7252315 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572003 2026-03-30 05:24:20 2461129.7252315 19.6506 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-04-04 09:47:06 - 2026-04-04 09:47:06 2461134.90771 - 2461134.90771 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572729 2026-04-04 09:47:06 2461134.90771 19.01 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-04-06 09:18:06 - 2026-04-06 09:18:06 2461136.88757 - 2461136.88757 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
572730 2026-04-06 09:18:06 2461136.88757 17.88 0 19.18 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
299697 2026-04-11 06:58:14 LAST_Bot1 R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al. LAST LAST 11:27:42.642 +54:15:47.13 2026-04-10 18:57:06.624 17.78 Clear- PSN LAST N
299654 2026-04-10 15:43:18 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 11:27:42.600 +54:15:47.16 2026-04-04 19:09:07.200 18.65 r-WFST PSN WFST260404aaibp WFST N
298810 2026-04-06 13:07:54 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:27:42.590 +54:15:47.20 2026-04-06 09:18:06.048 17.88 orange-ATLAS PSN ATLAS26dug ATLAS N
298357 2026-04-04 09:33:51 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 11:27:42.580 +54:15:47.06 2026-04-02 06:29:16.002 19.6236 r-ZTF PSN ZTF26aaqxnaq ZTF 2026TNSTR1423....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
23483 2026-04-17 09:17:24 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 0.049 1 ZTF 2026TNSCR1688....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
23485 2026-04-17 08:31:37 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026iei_2026-04-17_08-31-37.218530_P60_SEDM_ZTF.ascii Object

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