RA/DEC (2000)
18:56:57.503 +47:15:59.88
284.2395956 +47.2666341
Type
SN Ia
Redshift
0.055
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2026-02-05 12:18:47.002
TNS AT
Y
Public
Y
Host Name
WISEA J185657.85+471556.5
Discovery Mag
19.6836
Filter
r-ZTF
Reporter/s
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, J. Correa-Orellana, H. Bommireddy, S. Jurado, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, F. Andrades, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026ceo - 2026-02-26 12:20:04 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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌WFST_WFST-WFC_g
 ▌P48_ZTF-Cam_r
 ▌ATLAS-MLO_ATLAS-01_cyan
 ▌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
23099 2026-02-26 12:20:04 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026ceo_2026-02-26_12-20-04.104407_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-WFST WFST_WFST-WFC 2026-03-26 18:23:02 - 2026-03-26 18:23:02 2461126.266 - 2461126.266 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
571779 2026-03-26 18:23:02 2461126.266 19.92 0.1 ABMag g-WFST WFST_WFST-WFC 30
r-ZTF P48_ZTF-Cam 2026-02-03 12:51:26 - 2026-02-05 12:18:47 2461075.0357176 - 2461077.013044 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
555982 2026-02-05 12:18:47 2461077.013044 19.6836 0.182243 19.5859 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
555981 2026-02-03 12:51:26 2461075.0357176 19.1556 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
cyan-ATLAS ATLAS-MLO_ATLAS-01 2026-02-18 14:53:55 - 2026-02-18 14:53:55 2461090.12078 - 2461090.12078 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
559567 2026-02-18 14:53:55 2461090.12078 17.68 0.046 19.4 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-02-17 16:07:05 - 2026-02-17 16:07:05 2461089.17159 - 2461089.17159 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
559566 2026-02-17 16:07:05 2461089.17159 17.58 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
298239 2026-04-01 14:56:37 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 18:56:57.490 +47:15:59.92 2026-03-26 18:23:02.400 19.92 g-WFST PSN WFST260326icst WFST N
291943 2026-02-19 14:16:44 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 18:56:57.462 +47:15:59.89 2026-02-18 14:53:55.392 17.68 cyan-ATLAS PSN ATLAS26cbv ATLAS N
290029 2026-02-05 15:53:14 ALeRCE A. Munoz-Arancibia, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 18:56:57.503 +47:15:59.88 2026-02-05 12:18:47.002 19.6836 r-ZTF PSN WISEA J185657.85+471556.5 ZTF26aafdgsr ZTF SN candidate classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aafdgsr 2026TNSTR.480....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23098 2026-02-26 13:05:10 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 0.055 1 ZTF 2026TNSCR.853....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
23099 2026-02-26 12:20:04 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026ceo_2026-02-26_12-20-04.104407_P60_SEDM_ZTF.ascii Object

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