RA/DEC (2000)
13:27:56.121 -31:00:27.18
201.983839123 -31.0075505299
Type
SN Ia
Redshift
0.045
Discovery ReportClassification Report
Related AstroNotes: 2026-166
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-05-20 08:42:00.864
TNS AT
Y
Public
Y
Discovery Mag
19.196
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_2026nir - 2026-05-30 05:48:50 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_cyan
 ▌ATLAS-HKO_ATLAS-02_cyan
 ▌PS1_GPC1_w
 ▌Other_Other_Other
   
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
23872 2026-05-30 05:48:50 ESO-NTT / EFOSC2-NTT 1800 Sethulakshmi Vazhayil, Jasvinderjit Khaulsay Amar Aryan, Cheng-Han Lai, Anirban Dutta, Aiswarya Sankar.K, Yu-Hsing Lee, Ting-Wan Chen ePESSTO+ tns_2026nir_2026-05-30_05-48-50_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026nir_2026-05-30_05-48-50_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-05-15 10:22:19 - 2026-05-24 10:50:35 2461175.932162 - 2461184.951789 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
585122 2026-05-24 10:50:35 2461184.951789 18.06 0.04 ABMag L-GOTO GOTO-S_GOTO-4 180
585121 2026-05-15 10:22:19 2461175.932162 20.3 ABMag L-GOTO GOTO-S_GOTO-4 135 [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2026-05-18 03:47:13 - 2026-05-18 03:47:13 2461178.65779 - 2461178.65779 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584621 2026-05-18 03:47:13 2461178.65779 19.79 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2026-05-20 08:42:01 - 2026-05-20 08:42:01 2461180.86251 - 2461180.86251 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584622 2026-05-20 08:42:01 2461180.86251 19.196 0.156 19.37 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
w-P1 PS1_GPC1 2026-05-20 07:41:26 - 2026-05-20 07:41:26 2461180.82044 - 2461180.82044 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
585204 2026-05-20 07:41:26 2461180.82044 19.33 0.04 22 ABMag w-P1 PS1_GPC1 45 Robot
Other- Other_Other 2026-01-22 08:27:46 - 2026-06-01 03:10:21 2461062.85261 - 2461192.63219 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
588462 2026-06-01 03:10:21 2461192.63219 16.1 17.9 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
588461 2026-06-01 03:08:56 2461192.6312 16.9 18.1 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
588460 2026-01-22 08:27:46 2461062.85261 20.4 VegaMag Other- Other_Other 60 Robot [Last non detection] MASTER-OAFA
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
306827 2026-06-02 12:39:39 MASTER Ya.Kechin, V.Lipunov, E.Gorbovskoy et al. MASTER MASTER 13:27:56.150 -31:00:27.80 2026-06-01 03:08:55.680 16.9 Other- PSN MASTER OT J132756.15-310027.8 MASTER N
305170 2026-05-24 23:48:40 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 13:27:56.121 -31:00:27.18 2026-05-20 07:41:26.016 19.33 w-P1 PSN PS26blx Pan-STARRS N
305132 2026-05-24 15:20:20 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 13:27:56.112 -31:00:27.28 2026-05-24 10:50:34.656 18.06 L-GOTO Other GOTO26fdo GOTO N
304903 2026-05-22 15:48:58 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 13:27:56.136 -31:00:27.30 2026-05-20 08:42:00.864 19.196 cyan-ATLAS PSN ATLAS26gfd ATLAS 2026TNSTR2223....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
23868 2026-05-30 13:38:28 ePESSTOplus_Bot1 Sethulakshmi Vazhayil, Jasvinderjit Khaulsay, Amar Aryan, Cheng-Han Lai, Anirban Dutta, Aiswarya Sankar.K, Yu-Hsing Lee, Ting-Wan Chen, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.045 1 ePESSTO+ 2026TNSCR2346....1V
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
23872 2026-05-30 05:48:50 ESO-NTT / EFOSC2-NTT 1800 Sethulakshmi Vazhayil, Jasvinderjit Khaulsay Amar Aryan, Cheng-Han Lai, Anirban Dutta, Aiswarya Sankar.K, Yu-Hsing Lee, Ting-Wan Chen ePESSTO+ tns_2026nir_2026-05-30_05-48-50_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026nir_2026-05-30_05-48-50_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Sun, 05/24/2026 - 23:48

Object coordinates updated

Object coordinates updated according to AT-report 305170 of Group Pan-STARRS
Previous RA, DEC: 13:27:56.136, -31:00:27.30 (201.983898667, -31.0075833333)
Updated RA, DEC: 13:27:56.121, -31:00:27.18 (201.983839123, -31.0075505299)