RA/DEC (2000)
01:11:08.808 +08:46:23.86
17.786699021429 +8.7732938071429
Type
SN Ia
Redshift
0.035438
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-09-29 06:44:45.000
TNS AT
Y
Public
Y
Host Name
UGC00741
Comments
[Object cross-matched with UGC00741]
Discovery Mag
17.4097
Filter
r-ZTF
Reporter/s
Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026adff - 2026-10-07 23:44:59 Lesedi / Mookodi (ATLAS)z=
 ▌SN_2026adff - 2026-09-29 11:00:09 P60 / SEDM (ZTF)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
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▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
▌Show [O I] at z=vexp= km/s
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▌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
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▌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
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▌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-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
   
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
24861 2026-10-07 23:44:59 Lesedi / Mookodi 600 N. Erasmus, S. Potter, C. van Gend, H. Worters, P. Rabe (all SAAO) S. de Wet ATLAS tns_2026adff_2026-10-07_23-44-59_Lesedi_Mookodi_ATLAS.csv Object The classification target was automatically sent for follow-up by the Virtual Research Assistant (Stevance et al. 2025). Observations were programatically triggered using the ATLAS API Client (Stevance et al. 2026) and the SAAO Intelligent Observatory framework (Erasmus et al. 2024, Erasmus et al. 2025)
24796 2026-09-29 11:00:09 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026adff_2026-09-29_11-00-09.226130_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-09-25 01:25:14 - 2026-09-30 01:39:37 2461308.55919 - 2461313.56918 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
622869 2026-09-30 01:39:37 2461313.56918 17.228 0.106 19.06 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
622868 2026-09-25 01:25:14 2461308.55919 18.01 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2026-09-24 03:41:22 - 2026-09-29 23:54:23 2461307.653725 - 2461313.4961 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
622991 2026-09-29 23:54:23 2461313.4961 17.33 0.04 ABMag L-GOTO GOTO-N_GOTO-1 180
622990 2026-09-24 03:41:22 2461307.653725 18.9 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-09-26 06:36:01 - 2026-09-29 06:44:45 2461309.7750116 - 2461312.7810764 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
622606 2026-09-29 06:44:45 2461312.7810764 17.4097 0.0745294 ABMag r-ZTF P48_ZTF-Cam
624479 2026-09-29 06:44:45 2461312.7810764 17.4097 0.074529 18.9958 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
624478 2026-09-26 06:36:01 2461309.7750116 19.154 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
g-ZTF P48_ZTF-Cam 2026-09-26 08:06:39 - 2026-09-29 07:58:56 2461309.8379514 - 2461312.8325926 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
622607 2026-09-29 07:58:56 2461312.8325926 17.4632 0.0593517 ABMag g-ZTF P48_ZTF-Cam
622605 2026-09-26 08:06:39 2461309.8379514 18.963 ABMag g-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
326810 2026-10-04 18:49:48 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 01:11:08.808 +08:46:23.86 2026-09-29 06:44:45.001 17.4097 r-ZTF PSN ZTF26abxydtt ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26abxydtt N
325907 2026-09-30 23:10:37 GOTO_bot S. Belkin, D. O'Neill, K. Ackley et al. GOTO GOTO 01:11:08.820 +08:46:24.24 2026-09-29 23:54:23.040 17.33 L-GOTO Other GOTO26khr GOTO N
325854 2026-09-30 14:57:40 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 01:11:08.811 +08:46:23.95 2026-09-30 01:39:37.152 17.228 wide-ATLAS PSN ATLAS26lwr ATLAS N
325708 2026-09-29 09:55:15 BTSbot_bot Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF ZTF ZTF 01:11:08.809 +08:46:23.84 2026-09-29 06:44:45.000 17.4097 r-ZTF PSN ZTF26abxydtt ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). 2026TNSTR3919....1R N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
24853 2026-10-08 10:13:03 ATLAS_Class_Bot S. de Wet and H. F. Stevance on behalf of ATLAS and SAAO IO ATLAS SN Ia 1 ATLAS SNID-SAGE [1] finds matches to SN Ia-norm spectra close to peak. [1] https://ui.adsabs.harvard.edu/abs/2026MNRAS.549g1066S/abstract 2026TNSCR4066....1W
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
24861 2026-10-07 23:44:59 Lesedi / Mookodi 600 N. Erasmus, S. Potter, C. van Gend, H. Worters, P. Rabe (all SAAO) S. de Wet ATLAS tns_2026adff_2026-10-07_23-44-59_Lesedi_Mookodi_ATLAS.csv Object The classification target was automatically sent for follow-up by the Virtual Research Assistant (Stevance et al. 2025). Observations were programatically triggered using the ATLAS API Client (Stevance et al. 2026) and the SAAO Intelligent Observatory framework (Erasmus et al. 2024, Erasmus et al. 2025)
24788 2026-09-29 11:44:26 ZTF_Bot1 C. Fremling and J. Purdum on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.035438 1 ZTF 2026TNSCR3921....1F
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
24796 2026-09-29 11:00:09 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2026adff_2026-09-29_11-00-09.226130_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sun, 10/04/2026 - 18:49

Object coordinates updated

Object coordinates updated according to AT-report 326810 of Group ZTF
Previous RA, DEC: 01:11:08.809, +08:46:23.84 (17.7867024, +8.7732887)
Updated RA, DEC: 01:11:08.808, +08:46:23.86 (17.786699021429, +8.7732938071429)