RA/DEC (2000)
11:25:43.622 -16:40:10.37
171.4317575 -16.6695475
Type
SN Ia
Redshift
0.076
Discovery ReportClassification Report
Related AstroNotes: 2026-138
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-05-14 04:59:12.192
TNS AT
Y
Public
Y
Discovery Mag
19.208
Filter
cyan-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_2026mrc - 2026-05-17 03:12:13 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

 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
23740 2026-05-17 03:12:13 ESO-NTT / EFOSC2-NTT 1800 J. Khaulsay,J. Quirola-Vásquez C. Aster ePESSTO+ tns_2026mrc_2026-05-17_03-12-13_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026mrc_2026-05-17_03-12-13_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2026-05-10 13:02:37 - 2026-05-11 08:55:43 2461171.043482 - 2461171.872032 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583324 2026-05-11 08:55:43 2461171.872032 20.08 0.17 ABMag L-GOTO GOTO-S_GOTO-3 180
583323 2026-05-10 13:02:37 2461171.043482 20.1 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2026-05-14 04:59:12 - 2026-05-14 04:59:12 2461174.70778 - 2461174.70778 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
582793 2026-05-14 04:59:12 2461174.70778 19.208 0.167 19.48 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
cyan-ATLAS ATLAS-HKO_ATLAS-02 2026-05-13 08:32:52 - 2026-05-13 08:32:52 2461173.85616 - 2461173.85616 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
582792 2026-05-13 08:32:52 2461173.85616 19.48 ABMag cyan-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
304122 2026-05-17 11:37:20 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 11:25:43.604 -16:40:10.60 2026-05-11 08:55:43.392 20.08 L-GOTO Other GOTO26ewk GOTO N
303847 2026-05-15 09:36:53 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:25:43.622 -16:40:10.37 2026-05-14 04:59:12.192 19.208 cyan-ATLAS PSN ATLAS26fqh ATLAS 2026TNSTR2109....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
23737 2026-05-17 16:05:38 Asaf Horowicz J. Khaulsay,J. Quirola-Vásquez, C. Aster, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN Ia 0.076 1 ePESSTO+ 2026TNSCR2146....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
23740 2026-05-17 03:12:13 ESO-NTT / EFOSC2-NTT 1800 J. Khaulsay,J. Quirola-Vásquez C. Aster ePESSTO+ tns_2026mrc_2026-05-17_03-12-13_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026mrc_2026-05-17_03-12-13_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments