RA/DEC (2000)
17:09:50.810 +26:09:14.16
257.461708 +26.153933
Type
SN Ia
Redshift
0.046
Discovery ReportClassification Report
Related AstroNotes: 2026-117, 2026-121
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-04-23 11:43:08.256
TNS AT
Y
Public
Y
Discovery Mag
18.979
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_2026kob - 2026-05-04 07:24:51 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

 ▌WFST_WFST-WFC_g
 ▌GOTO-N_GOTO-2_L
 ▌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
23624 2026-05-04 07:24:51 ESO-NTT / EFOSC2-NTT 900 Camila Cárdenas, Jasvinderjit Khaulsay Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen, Chen-Yen Hsu, Khoa Ngo, Thanh Ho ePESSTO+ tns_2026kob_2026-05-04_07-24-51_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026kob_2026-05-04_07-24-51_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-WFST WFST_WFST-WFC 2026-05-01 19:37:55 - 2026-05-01 19:37:55 2461162.318 - 2461162.318 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
579396 2026-05-01 19:37:55 2461162.318 18.77 0.02 ABMag g-WFST WFST_WFST-WFC 30
L-GOTO GOTO-N_GOTO-2 2026-04-15 02:21:22 - 2026-04-21 02:15:12 2461145.598175 - 2461151.593894 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577669 2026-04-21 02:15:12 2461151.593894 19.29 0.11 ABMag L-GOTO GOTO-N_GOTO-2 180
577668 2026-04-15 02:21:22 2461145.598175 19.9 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-04-22 12:37:25 - 2026-04-23 11:43:08 2461153.02598 - 2461153.98829 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
577569 2026-04-23 11:43:08 2461153.98829 18.979 0.157 19.56 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
577568 2026-04-22 12:37:25 2461153.02598 19.54 ABMag orange-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
302223 2026-05-03 15:31:52 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 17:09:50.810 +26:09:14.16 2026-05-01 19:37:55.200 18.77 g-WFST PSN WFST260427iboq WFST N
301332 2026-04-24 10:51:30 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 17:09:50.800 +26:09:14.39 2026-04-21 02:15:12.096 19.29 L-GOTO Other GOTO26dqf GOTO N
301282 2026-04-24 07:58:27 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 17:09:50.841 +26:09:14.15 2026-04-23 11:43:08.256 18.979 orange-ATLAS PSN ATLAS26esz ATLAS 2026TNSTR1798....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
23621 2026-05-04 17:05:01 ePESSTOplus_Bot1 Camila Cárdenas, Jasvinderjit Khaulsay, Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen, Chen-Yen Hsu, Khoa Ngo, Thanh Ho, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.046 1 ePESSTO+ 2026TNSCR1935....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
23624 2026-05-04 07:24:51 ESO-NTT / EFOSC2-NTT 900 Camila Cárdenas, Jasvinderjit Khaulsay Aiswarya Sankar.K, Anirban Dutta, Amar Aryan, Ting-Wan Chen, Chen-Yen Hsu, Khoa Ngo, Thanh Ho ePESSTO+ tns_2026kob_2026-05-04_07-24-51_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026kob_2026-05-04_07-24-51_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Sun, 05/03/2026 - 15:31

Object coordinates updated

Object coordinates updated according to AT-report 302223 of Group WFST
Previous RA, DEC: 17:09:50.841, +26:09:14.15 (257.461838333, +26.1539291667)
Updated RA, DEC: 17:09:50.810, +26:09:14.16 (257.461708, +26.153933)