RA/DEC (2000)
12:59:50.277 -10:58:39.42
194.9594859 -10.977616142857
Type
SN Ia
Redshift
0.05
Discovery ReportClassification Report
Related AstroNotes: 2026-121
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2026-04-20 08:05:00.004
TNS AT
Y
Public
Y
Discovery Mag
19.6694
Filter
i-ZTF
Reporter/s
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, S. Jurado, A. Mourao, A. Alvarez, F. Andrades, A. Bayo, G. Cabrera-Vives, M. Catelan, P.A. Estevez, S. Eyheramendy, B. Galindo, L. Hernandez-Garcia, H. Larranaga, K. Medina, D. Moreno-Cartagena, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026kep - 2026-05-04 03:09:02 ESO-NTT / EFOSC2-NTT (ePESSTO+)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
 ▌GOTO-S_GOTO-4_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_r
   
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
23616 2026-05-04 03:09:02 ESO-NTT / EFOSC2-NTT 600 Camila Cárdenas, Jasvinderjit Khaulsay Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen, Chen-Yen Hsu, Khoa Ngo, Thanh Ho ePESSTO+ tns_2026kep_2026-05-04_03-09-02_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026kep_2026-05-04_03-09-02_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-04-21 00:00:13 - 2026-04-21 00:00:13 2461151.50015 - 2461151.50015 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576675 2026-04-21 00:00:13 2461151.50015 19.212 0.122 19.82 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-S_GOTO-4 2026-04-16 11:54:23 - 2026-04-21 11:54:54 2461146.996097 - 2461151.996456 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576961 2026-04-21 11:54:54 2461151.996456 19.14 0.08 ABMag L-GOTO GOTO-S_GOTO-4 180
576960 2026-04-16 11:54:23 2461146.996097 20.3 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-04-19 06:01:56 - 2026-04-19 06:01:56 2461149.75134 - 2461149.75134 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576674 2026-04-19 06:01:56 2461149.75134 19.46 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
i-ZTF P48_ZTF-Cam 2026-04-17 06:29:25 - 2026-04-20 08:05:00 2461147.7704282 - 2461150.8368056 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576620 2026-04-20 08:05:00 2461150.8368056 19.6694 0.176747 19.7746 ABMag i-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
580482 2026-04-20 08:05:00 2461150.8368056 19.6694 0.176747 19.7746 ABMag i-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
580481 2026-04-17 06:29:25 2461147.7704282 19.7162 ABMag i-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
r-ZTF P48_ZTF-Cam 2026-04-20 06:33:13 - 2026-04-20 06:33:13 2461150.7730671 - 2461150.7730671 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576619 2026-04-20 06:33:13 2461150.7730671 20.3528 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
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
302735 2026-05-08 18:46:02 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 12:59:50.277 -10:58:39.42 2026-04-20 08:05:00.004 19.6694 i-ZTF PSN ZTF26aatmcni ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aatmcni N
300990 2026-04-22 21:27:56 GOTO_bot R. Starling, D. O'Neill, K. Ackley et al. GOTO GOTO 12:59:50.287 -10:58:39.76 2026-04-21 11:54:54.144 19.14 L-GOTO Other GOTO26doi GOTO N
300837 2026-04-21 07:51:46 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 12:59:50.288 -10:58:39.64 2026-04-21 00:00:12.960 19.212 wide-ATLAS PSN ATLAS26eoi ATLAS N
300808 2026-04-20 18:42:01 ALeRCE A. Munoz-Arancibia, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 12:59:50.273 -10:58:39.19 2026-04-20 08:05:00.004 19.6694 i-ZTF PSN ZTF26aatmcni 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/ZTF26aatmcni 2026TNSTR1724....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
23613 2026-05-04 17:05:01 ePESSTOplus_Bot1 Camila Cárdenas, Jasvinderjit Khaulsay, Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen, Chen-Yen Hsu, Khoa Ngo, Thanh Ho, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.05 1 ePESSTO+ 2026TNSCR1935....1C
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
23616 2026-05-04 03:09:02 ESO-NTT / EFOSC2-NTT 600 Camila Cárdenas, Jasvinderjit Khaulsay Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen, Chen-Yen Hsu, Khoa Ngo, Thanh Ho ePESSTO+ tns_2026kep_2026-05-04_03-09-02_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026kep_2026-05-04_03-09-02_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Fri, 05/08/2026 - 18:46

Object coordinates updated

Object coordinates updated according to AT-report 302735 of Group ZTF
Previous RA, DEC: 12:59:50.273, -10:58:39.19 (194.9594702, -10.9775536)
Updated RA, DEC: 12:59:50.277, -10:58:39.42 (194.9594859, -10.977616142857)