RA/DEC (2000)
01:21:27.834 -10:37:05.07
20.3659760097 -10.6180761493
Type
SN Ia
Redshift
0.01834
Discovery ReportClassification Report
Related AstroNotes: 2026-224
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-07-17 14:18:06.624
TNS AT
Y
Public
Y
Discovery Mag
18.024
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, J. Weston, X. Sheng, C. R. Angus, D. Magill, A. J. Smith, L. Shingles (QUB), A. Aamer (Arizona), P. Ramsden (Birmingham/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), T. Moore, A. Rest (STScI), T.-W. Chen (NCU), C. Deasy-Millar (TCD), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026vbh - 2026-07-19 19:12:00 ANU-2.3m / WiFeS (Supernova Alliance)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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-S_GOTO-3_L
 ▌PS2_GPC2_w
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_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
24329 2026-07-19 19:12:00 ANU-2.3m / WiFeS 750 B. P. Schmidt C. Lidman Supernova Alliance tns_2026vbh_2026-07-19.8_ANU-2.3m_WiFeS_Supernova_Alliance.dat tns_2026vbh_2026-07-19.8_ANU-2.3m_WiFeS_Supernova_Alliance.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-07-15 04:55:10 - 2026-07-15 04:55:10 2461236.70498 - 2461236.70498 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
605119 2026-07-15 04:55:10 2461236.70498 19.29 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-S_GOTO-3 2026-07-04 17:47:24 - 2026-07-20 17:22:56 2461226.241249 - 2461242.224263 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
605584 2026-07-20 17:22:56 2461242.224263 17 0.02 ABMag L-GOTO GOTO-S_GOTO-3 180
605583 2026-07-04 17:47:24 2461226.241249 19.4 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
w-P1 PS2_GPC2 2026-07-29 13:19:17 - 2026-07-29 13:19:17 2461251.05506 - 2461251.05506 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
608028 2026-07-29 13:19:17 2461251.05506 16.06 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2026-07-23 12:01:54 - 2026-07-23 12:01:54 2461245.0013194 - 2461245.0013194 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
606722 2026-07-23 12:01:54 2461245.0013194 16.3832 0.0250481 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2026-07-23 10:40:30 - 2026-07-23 10:40:30 2461244.9447917 - 2461244.9447917 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
606721 2026-07-23 10:40:30 2461244.9447917 16.4336 0.0431631 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-07-17 14:18:07 - 2026-07-17 14:18:07 2461239.09591 - 2461239.09591 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
605120 2026-07-17 14:18:07 2461239.09591 18.024 0.081 19.44 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
317472 2026-08-01 09:54:50 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 01:21:27.834 -10:37:05.07 2026-07-29 13:19:17.184 16.06 w-P1 PSN PS26fvq Pan-STARRS N
316765 2026-07-23 14:55:06 BTSbot_bot Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF ZTF ZTF 01:21:27.840 -10:37:05.03 2026-07-23 10:40:30.002 16.4336 g-ZTF PSN ZTF26abjhowo ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
316009 2026-07-20 19:38:03 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 01:21:27.830 -10:37:05.24 2026-07-20 17:22:56.064 17 L-GOTO Other GOTO26gzw GOTO N
315789 2026-07-18 20:09:50 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 01:21:27.823 -10:37:05.09 2026-07-17 14:18:06.624 18.024 orange-ATLAS PSN ATLAS26irw ATLAS 2026TNSTR2968....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
24322 2026-07-20 03:11:00 Chris Lidman C. Lidman (ANU), B. P. Schmidt (ANU), K. Auchettl (University of Melbourne/UCSC), D. Cao (ANU), B. Martin (ANU), A. Moller (Swinburne), A. Protheroe (ANU), L. Rauf (ANU), and B. E. Tucker (ANU) Supernova Alliance SN Ia 0.01834 1 Supernova Alliance Classified with Superfit 2026TNSCR2988....1L
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
24329 2026-07-19 19:12:00 ANU-2.3m / WiFeS 750 B. P. Schmidt C. Lidman Supernova Alliance tns_2026vbh_2026-07-19.8_ANU-2.3m_WiFeS_Supernova_Alliance.dat tns_2026vbh_2026-07-19.8_ANU-2.3m_WiFeS_Supernova_Alliance.fits Object

Comments

TNS
System

Sat, 08/01/2026 - 09:54

Object coordinates updated

Object coordinates updated according to AT-report 317472 of Group Pan-STARRS
Previous RA, DEC: 01:21:27.840, -10:37:05.03 (20.3659991, -10.6180648)
Updated RA, DEC: 01:21:27.834, -10:37:05.07 (20.3659760097, -10.6180761493)

TNS
System

Thu, 07/23/2026 - 14:55

Object coordinates updated

Object coordinates updated according to AT-report 316765 of Group ZTF
Previous RA, DEC: 01:21:27.823, -10:37:05.09 (20.36593, -10.6180811111)
Updated RA, DEC: 01:21:27.840, -10:37:05.03 (20.3659991, -10.6180648)