RA/DEC (2000)
11:20:31.594 -09:00:41.65
170.1316433 -9.0115708
Type
SN Ia
Redshift
0.02
Discovery ReportClassification Report
Related AstroNotes: 2026-161, 2026-173
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-05-29 01:27:36.576
TNS AT
Y
Public
Y
Discovery Mag
17.339
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_2026nuv - 2026-05-30 00:00:00 Gemini-S / GMOS-S (GeminiClass)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
 ▌LAST_LAST-Cam_Clear
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_i
   
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
23880 2026-05-30 00:00:00 Gemini-S / GMOS-S Gemini GeminiClass tns_2026nuv_2026-05-30_Gemini-S_GMOS-S_GeminiClass.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-05-27 22:26:10 - 2026-05-27 22:26:10 2461188.43484 - 2461188.43484 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587865 2026-05-27 22:26:10 2461188.43484 16.8 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
Clear- LAST_LAST-Cam 2024-03-04 22:17:15 - 2026-06-01 18:30:33 2460374.42865 - 2461193.27121 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
588287 2026-06-01 18:30:33 2461193.27121 17.36 ABMag Clear- LAST_LAST-Cam 400
588286 2024-03-04 22:17:15 2460374.42865 21.35 ABMag Clear- LAST_LAST-Cam 6340 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-05-29 01:27:37 - 2026-05-29 01:27:37 2461189.56084 - 2461189.56084 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587866 2026-05-29 01:27:37 2461189.56084 17.339 0.071 18.72 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
i-ZTF P48_ZTF-Cam 2026-05-15 04:03:45 - 2026-06-05 04:22:08 2461175.6692708 - 2461196.682037 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
588902 2026-06-05 04:22:08 2461196.682037 16.9626 0.0415849 ABMag i-ZTF P48_ZTF-Cam
588901 2026-05-31 05:10:10 2461191.7153935 17.1875 0.0580166 ABMag i-ZTF P48_ZTF-Cam
588900 2026-05-15 04:03:45 2461175.6692708 19.8994 ABMag i-ZTF P48_ZTF-Cam [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
307032 2026-06-05 04:30:28 BTSbot_bot Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF ZTF ZTF 11:20:31.594 -09:00:41.65 2026-05-31 05:10:09.998 17.1875 i-ZTF PSN ZTF26aayxacg ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
306741 2026-06-01 20:53:13 LAST_Bot1 R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al. LAST LAST 11:20:31.549 -09:00:41.09 2026-06-01 18:30:32.544 17.36 Clear- PSN LAST N
306530 2026-05-29 08:53:21 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:20:31.577 -09:00:41.89 2026-05-29 01:27:36.576 17.339 orange-ATLAS PSN ATLAS26gmm ATLAS 2026TNSTR2323....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
23876 2026-05-31 22:03:26 Priscila Pessi P. Pessi (NCBJ), A. Cikota (NOIRLab/Gemini South), V. Firpo (NOIRLab/Gemini South), F. Gran (NOIRLab/Gemini South), L. Magill (NOIRLab/Gemini South), D. May (NOIRLab/Gemini South), P. King (NOIRLab/Gemini South), K. Silva (NOIRLab/Gemini South), P. Candia (NOIRLab/Gemini South), R. Ruiz-Carmona (NOIRLab/Gemini South), S. Panda (NOIRLab/Gemini South), J. Font-Serra (NOIRLab/Gemini South), R. Angeloni (NOIRLab/Gemini South), V. Kalari (NOIRLab/Gemini South), C. Rodriguez (NOIRLab/Gemini South), J.-E. Heo (NOIRLab/Gemini South), E. Sabbi (NOIRLab), T. Ahumada (NOIRLab/ SOAR), R. Cartier (University of Antofagasta), S. Cikota (CAHA) GeminiClass SN Ia 0.02 1 GeminiClass
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
23880 2026-05-30 00:00:00 Gemini-S / GMOS-S Gemini GeminiClass tns_2026nuv_2026-05-30_Gemini-S_GMOS-S_GeminiClass.txt Object

Comments

TNS
System

Fri, 06/05/2026 - 04:30

Object coordinates updated

Object coordinates updated according to AT-report 307032 of Group ZTF
Previous RA, DEC: 11:20:31.577, -09:00:41.89 (170.13157, -9.01163545455)
Updated RA, DEC: 11:20:31.594, -09:00:41.65 (170.1316433, -9.0115708)