RA/DEC (2000)
21:00:10.759 -32:17:04.84
315.044829 -32.284678
Type
SN Ia
Redshift
0.03
Discovery ReportClassification Report
Related AstroNotes: 2026-120
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-04-19 14:34:01.344
TNS AT
Y
Public
Y
Discovery Mag
18.174
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_2026kis - 2026-05-03 06:40:48 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
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌ATLAS-HKO_ATLAS-02_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
23611 2026-05-03 06:40:48 ESO-NTT / EFOSC2-NTT 600 Jasvinder Khaulsay, Camila Cárdenas Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen ePESSTO+ tns_2026kis_2026-05-03_06-40-48_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026kis_2026-05-03_06-40-48_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-11-20 10:13:20 - 2026-04-25 19:14:28 2460999.925925 - 2461156.301711 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578443 2026-04-25 19:14:28 2461156.301711 16.65 0.01 ABMag L-GOTO GOTO-S_GOTO-4 180
578442 2025-11-20 10:13:20 2460999.925925 19.3 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-04-16 10:07:45 - 2026-04-16 10:07:45 2461146.92205 - 2461146.92205 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576928 2026-04-16 10:07:45 2461146.92205 18.65 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2026-04-28 09:03:53 - 2026-04-28 09:03:53 2461158.8776968 - 2461158.8776968 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583881 2026-04-28 09:03:53 2461158.8776968 16.65 0.02 20.63 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-10-14 00:49:37 - 2025-10-14 00:49:37 2460962.534456 - 2460962.534456 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
583880 2025-10-14 00:49:37 2460962.534456 20.15 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-04-19 14:34:01 - 2026-04-19 14:34:01 2461150.10696 - 2461150.10696 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
576929 2026-04-19 14:34:01 2461150.10696 18.174 0.104 18.88 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
304549 2026-05-19 12:59:02 BlackGEM_Bot1 L. Landsberg, H. Tranin, F. Stoppa et al. BlackGEM BlackGEM 21:00:10.759 -32:17:04.84 2026-04-28 09:03:53.000 16.65 BG-q-BlackGem PSN BGEM J210010.76-321704.8 BlackGEM N
301738 2026-04-27 22:37:50 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 21:00:10.758 -32:17:05.01 2026-04-25 19:14:27.744 16.65 L-GOTO Other GOTO26dzc GOTO N
300974 2026-04-22 20:54:53 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 21:00:10.757 -32:17:05.00 2026-04-19 14:34:01.344 18.174 orange-ATLAS PSN ATLAS26epq ATLAS 2026TNSTR1763....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
23608 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 0.03 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
23611 2026-05-03 06:40:48 ESO-NTT / EFOSC2-NTT 600 Jasvinder Khaulsay, Camila Cárdenas Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen ePESSTO+ tns_2026kis_2026-05-03_06-40-48_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026kis_2026-05-03_06-40-48_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Tue, 05/19/2026 - 12:59

Object coordinates updated

Object coordinates updated according to AT-report 304549 of Group BlackGEM
Previous RA, DEC: 21:00:10.757, -32:17:05.00 (315.044821176, -32.2847211765)
Updated RA, DEC: 21:00:10.759, -32:17:04.84 (315.044829, -32.284678)