RA/DEC (2000)
23:47:50.899 +49:28:49.68
356.962078889 +49.4804655556
Type
SN Ia
Redshift
0.032202
Discovery ReportClassification Report
Related AstroNotes: 2026-237
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-07-29 10:27:54.720
TNS AT
Y
Public
Y
Discovery Mag
18.229
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_2026wjs - 2026-08-03 21:47:00 BL41 / FOSC-E5535 (None)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-N_GOTO-2_L
 ▌GOTO-N_GOTO-1_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
24415 2026-08-03 21:47:00 BL41 / FOSC-E5535 5400 Claudio Balcon Claudio Balcon None tns_2026wjs_2026-08-03_21-47-00_BL41_FOSC-E5535_None.dat tns_2026wjs_2026-08-03_21-47-00_BL41_FOSC-E5535_None.fit Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-07-28 03:39:52 - 2026-07-28 03:39:52 2461249.65269 - 2461249.65269 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
607893 2026-07-28 03:39:52 2461249.65269 18.94 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-2 2026-07-12 04:36:47 - 2026-07-12 04:36:47 2461233.692205 - 2461233.692205 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
608083 2026-07-12 04:36:47 2461233.692205 20.3 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2026-07-27 00:06:50 - 2026-07-27 00:06:50 2461248.504748 - 2461248.504748 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
608084 2026-07-27 00:06:50 2461248.504748 19.33 0.13 ABMag L-GOTO GOTO-N_GOTO-1 360
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-07-29 10:27:55 - 2026-07-29 10:27:55 2461250.93605 - 2461250.93605 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
607894 2026-07-29 10:27:55 2461250.93605 18.229 0.162 18.53 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
317505 2026-08-01 17:06:22 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 23:47:50.932 +49:28:49.85 2026-07-27 00:06:50.400 19.33 L-GOTO Other GOTO26hmq GOTO N
317383 2026-07-30 00:15:50 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 23:47:50.899 +49:28:49.68 2026-07-29 10:27:54.720 18.229 orange-ATLAS PSN ATLAS26jhu ATLAS 2026TNSTR3089....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
24408 2026-08-03 22:52:13 Claudio Balcon Claudio Balcon (Belluno A.O. ISSP) None SN Ia 0.032202 1 GELATO Harutyunyan et al., 2008, A&A, 488, 383 (gelato@tng.iac.es) suggests that this spectrum resembles that of a Type Ia supernova at the host galaxy's redshift, the value from NED. 2026TNSCR3142....1B
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
24415 2026-08-03 21:47:00 BL41 / FOSC-E5535 5400 Claudio Balcon Claudio Balcon None tns_2026wjs_2026-08-03_21-47-00_BL41_FOSC-E5535_None.dat tns_2026wjs_2026-08-03_21-47-00_BL41_FOSC-E5535_None.fit Object

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