RA/DEC (2000)
00:39:46.559 -37:37:05.41
9.943996 -37.618169
Type
SN Ia
Redshift
0.06
Discovery ReportClassification Report
Related AstroNotes: 2026-167
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-05-28 04:01:52.608
TNS AT
Y
Public
Y
Discovery Mag
18.315
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_2026nus - 2026-05-29 00:00:00 Gemini-S / GMOS-S (GeminiClass)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

 ▌GOTO-S_GOTO-4_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_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
23874 2026-05-29 00:00:00 Gemini-S / GMOS-S Gemini GeminiClass tns_2026nus_2026-05-29_Gemini-S_GMOS-S_GeminiClass.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-12-15 10:54:59 - 2026-06-06 18:59:50 2461024.954847 - 2461198.291546 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
589857 2026-06-06 18:59:50 2461198.291546 18.55 0.06 ABMag L-GOTO GOTO-S_GOTO-4 180
589856 2025-12-15 10:54:59 2461024.954847 20.5 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-05-27 10:21:22 - 2026-05-27 10:21:22 2461187.9315 - 2461187.9315 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587845 2026-05-27 10:21:22 2461187.9315 19.06 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2026-05-28 04:01:53 - 2026-05-28 04:01:53 2461188.66797 - 2461188.66797 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587846 2026-05-28 04:01:53 2461188.66797 18.315 0.133 19.3 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 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
307500 2026-06-08 10:50:39 GOTO_bot G. Ramsay, K. Ackley, M. Dyer et al. GOTO GOTO 00:39:46.542 -37:37:05.47 2026-06-06 18:59:49.920 18.55 L-GOTO Other GOTO26flv GOTO N
306520 2026-05-29 07:22:41 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 00:39:46.559 -37:37:05.41 2026-05-28 04:01:52.608 18.315 orange-ATLAS PSN ATLAS26gme ATLAS 2026TNSTR2323....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
23870 2026-05-30 17:39:50 Priscila Pessi A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), V. Firpo (NOIRLab/Gemini South), F. Gran (NOIRLab/Gemini South), L. Magill (NOIRLab/Gemini South), D. May (NOIRLab/Gemini South), P. King (NOIRLab/Gemini South), K. Silva (NOIRLab/Gemini South), P. Candia (NOIRLab/Gemini South), R. Ruiz-Carmona (NOIRLab/Gemini South), S. Panda (NOIRLab/Gemini South), J. Font-Serra (NOIRLab/Gemini South), R. Angeloni (NOIRLab/Gemini South), V. Kalari (NOIRLab/Gemini South), C. Rodriguez (NOIRLab/Gemini South), J.-E. Heo (NOIRLab/Gemini South), E. Sabbi (NOIRLab), T. Ahumada (NOIRLab/ SOAR), R. Cartier (University of Antofagasta), S. Cikota (CAHA) GeminiClass SN Ia 0.06 1 GeminiClass Spectral matching consistent with at SN Ia around peak at redshift 0.06. 2026TNSCR2347....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
23874 2026-05-29 00:00:00 Gemini-S / GMOS-S Gemini GeminiClass tns_2026nus_2026-05-29_Gemini-S_GMOS-S_GeminiClass.txt Object

Comments