RA/DEC (2000)
20:38:48.864 -58:53:21.28
309.703598462 -58.8892453846
Type
SN Ia
Redshift
0.106
Discovery ReportClassification Report
Related AstroNotes: 2026-194
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-05-13 06:26:21.120
TNS AT
Y
Public
Y
Discovery Mag
19.093
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_2026myc - 2026-06-13 07:58:14 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-4_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-CHL_ATLAS-04_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
24042 2026-06-13 07:58:14 ESO-NTT / EFOSC2-NTT 900 C.G. Touchard-Paxton, E. Charleton, M. Ghendrih N. Shiamtanis, C. Dashwood-Brown ePESSTO+ tns_2026myc_2026-06-13_07-58-14_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026myc_2026-06-13_07-58-14_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-05-05 18:36:06 - 2026-05-09 19:04:11 2461166.275071 - 2461170.29457 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
589954 2026-05-09 19:04:11 2461170.29457 19.87 0.17 ABMag L-GOTO GOTO-S_GOTO-4 180
589953 2026-05-05 18:36:06 2461166.275071 19.8 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-05-04 07:59:24 - 2026-05-04 07:59:24 2461164.83292 - 2461164.83292 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583416 2026-05-04 07:59:24 2461164.83292 18.84 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2026-05-13 06:26:21 - 2026-05-13 06:26:21 2461173.7683 - 2461173.7683 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583417 2026-05-13 06:26:21 2461173.7683 19.093 0.15 19.6 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 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
307545 2026-06-08 11:58:28 GOTO_bot D. O'Neill, G. Ramsay, K. Ackley et al. GOTO GOTO 20:38:48.790 -58:53:21.86 2026-05-09 19:04:10.848 19.87 L-GOTO Other GOTO26fcq GOTO N
304212 2026-05-17 18:34:46 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 20:38:48.864 -58:53:21.28 2026-05-13 06:26:21.120 19.093 cyan-ATLAS PSN ATLAS26fvj ATLAS 2026TNSTR2137....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
24036 2026-06-13 19:04:14 ePESSTOplus_Bot1 C.G. Touchard-Paxton, E. Charleton, M. Ghendrih, N. Shiamtanis, C. Dashwood-Brown, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.106 1 ePESSTO+
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
24042 2026-06-13 07:58:14 ESO-NTT / EFOSC2-NTT 900 C.G. Touchard-Paxton, E. Charleton, M. Ghendrih N. Shiamtanis, C. Dashwood-Brown ePESSTO+ tns_2026myc_2026-06-13_07-58-14_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026myc_2026-06-13_07-58-14_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments