RA/DEC (2000)
08:07:33.956 -66:51:42.96
121.891485 -66.8619333333
Type
SN Ia
Redshift
0.08
Discovery ReportClassification Report
Related AstroNotes: 2026-120
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-04-21 01:46:32.736
TNS AT
Y
Public
Y
Discovery Mag
19.196
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_2026koy - 2026-05-03 02:18:19 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-CHL_ATLAS-04_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
23607 2026-05-03 02:18:19 ESO-NTT / EFOSC2-NTT 1800 Jasvinder Khaulsay, Camila Cárdenas Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen ePESSTO+ tns_2026koy_2026-05-03_02-18-19_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026koy_2026-05-03_02-18-19_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-04-20 02:31:26 - 2026-04-21 01:46:33 2461150.60516 - 2461151.57399 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577627 2026-04-21 01:46:33 2461151.57399 19.196 0.199 19.4 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
577626 2026-04-20 02:31:26 2461150.60516 18.72 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 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
301311 2026-04-24 09:03:00 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 08:07:33.956 -66:51:42.96 2026-04-21 01:46:32.736 19.196 orange-ATLAS PSN ATLAS26euf ATLAS 2026TNSTR1798....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
23604 2026-05-04 13:10:10 ePESSTOplus_Bot1 Jasvinder Khaulsay, Camila Cárdenas, Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.08 1 ePESSTO+ 2026TNSCR1936....1K
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
23607 2026-05-03 02:18:19 ESO-NTT / EFOSC2-NTT 1800 Jasvinder Khaulsay, Camila Cárdenas Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen ePESSTO+ tns_2026koy_2026-05-03_02-18-19_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026koy_2026-05-03_02-18-19_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments