RA/DEC (2000)
18:26:12.433 +35:25:34.84
276.551804 +35.4263444
Type
SN Ia-91T-like
Redshift
0.04
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-06-17 01:32:37.248
TNS AT
Y
Public
Y
Discovery Mag
18.381
Filter
wide-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_2026pmt - 2026-06-20 09:06:19 UH88 / SNIFS (SCAT)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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-N_GOTO-2_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌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
24108 2026-06-20 09:06:19 UH88 / SNIFS 1800 M. E. Huber SCAT tns_2026pmt_2026-06-20_09-06-19_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-06-17 01:32:37 - 2026-06-17 01:32:37 2461208.56432 - 2461208.56432 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
592643 2026-06-17 01:32:37 2461208.56432 18.381 0.064 20.21 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-N_GOTO-2 2026-06-07 02:18:00 - 2026-06-19 01:29:51 2461198.59583 - 2461210.562401 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
593040 2026-06-19 01:29:51 2461210.562401 18.27 0.05 ABMag L-GOTO GOTO-N_GOTO-2 180
593039 2026-06-07 02:18:00 2461198.59583 19.9 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-06-09 09:37:52 - 2026-06-09 09:37:52 2461200.9012963 - 2461200.9012963 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
593298 2026-06-09 09:37:52 2461200.9012963 20.8986 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-06-11 09:48:29 - 2026-06-21 08:45:28 2461202.908669 - 2461212.8649074 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
593300 2026-06-21 08:45:28 2461212.8649074 18.0377 0.0484706 ABMag g-ZTF P48_ZTF-Cam
593299 2026-06-11 09:48:29 2461202.908669 20.7038 0.150989 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-06-16 13:08:51 - 2026-06-16 13:08:51 2461208.04781 - 2461208.04781 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
592642 2026-06-16 13:08:51 2461208.04781 19.47 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
309222 2026-06-21 09:46:40 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 18:26:12.433 +35:25:34.84 2026-06-11 09:48:29.001 20.7038 g-ZTF PSN ZTF26abcselx ZTF N
309071 2026-06-19 21:53:02 GOTO_bot B. Godson, D. O'Neill, K. Ackley et al. GOTO GOTO 18:26:12.433 +35:25:35.02 2026-06-19 01:29:51.360 18.27 L-GOTO Other GOTO26gbr GOTO N
308877 2026-06-18 08:29:07 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 18:26:12.420 +35:25:35.00 2026-06-17 01:32:37.248 18.381 wide-ATLAS PSN ATLAS26hjp ATLAS 2026TNSTR2584....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
24102 2026-06-20 22:41:18 Mark Huber M. E. Huber (IfA, UH Manoa) on behalf of the SCAT team SCAT SN Ia-91T-like 0.04 1 ATLAS, SCAT Spectrum matches type Ia-91T-like SN, days before maximum light. Classification, redshift and age from SNID-SAGE (Stoppa and Smartt 2026) 2026TNSCR2637....1H
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
24108 2026-06-20 09:06:19 UH88 / SNIFS 1800 M. E. Huber SCAT tns_2026pmt_2026-06-20_09-06-19_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Sun, 06/21/2026 - 09:46

Object coordinates updated

Object coordinates updated according to AT-report 309222 of Group ZTF
Previous RA, DEC: 18:26:12.420, +35:25:35.00 (276.551750909, +35.4263890909)
Updated RA, DEC: 18:26:12.433, +35:25:34.84 (276.551804, +35.4263444)