RA/DEC (2000)
10:14:22.192 +19:31:21.19
153.592466925 +19.5225519625
Type
SN Ia
Redshift
0.0996
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-01-11 08:57:45.000
TNS AT
Y
Public
Y
Discovery Mag
20.2573
Filter
g-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026aff - 2026-01-28 06:44:08 HET / HET-LRS (FLEET)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

 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
22888 2026-01-28 06:44:08 HET / HET-LRS 3600 HET Megan Newsome FLEET tns_2026aff_2026-01-28_06-44-07.58_HET_HET-LRS_FLEET.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-1 2026-01-10 01:26:41 - 2026-01-12 04:34:26 2461050.5602 - 2461052.690577 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
552749 2026-01-12 04:34:26 2461052.690577 19.98 0.14 ABMag L-GOTO GOTO-N_GOTO-1 360
552748 2026-01-10 01:26:41 2461050.5602 20 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2026-01-11 08:30:14 - 2026-01-15 08:54:20 2461051.8543287 - 2461055.8710648 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
550191 2026-01-15 08:54:20 2461055.8710648 19.7054 0.152044 ABMag r-ZTF P48_ZTF-Cam
550189 2026-01-11 08:30:14 2461051.8543287 20.1347 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-01-09 09:36:43 - 2026-01-11 08:57:45 2461049.9004977 - 2461051.8734375 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
550190 2026-01-11 08:57:45 2461051.8734375 20.2573 0.174135 ABMag g-ZTF P48_ZTF-Cam
551884 2026-01-11 08:57:45 2461051.8734375 20.1888 0.274979 20.0685 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
551883 2026-01-09 09:36:43 2461049.9004977 19.6995 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-01-14 11:26:44 - 2026-01-14 11:26:44 2461054.9769 - 2461054.9769 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
550876 2026-01-14 11:26:44 2461054.9769 19.24 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2026-01-16 11:09:55 - 2026-01-16 11:09:55 2461056.96522 - 2461056.96522 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
550877 2026-01-16 11:09:55 2461056.96522 19.441 0.171 19.49 ABMag cyan-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
288328 2026-01-22 10:38:24 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 10:14:22.250 +19:31:20.89 2026-01-12 04:34:26.112 19.98 L-GOTO Other GOTO26uo GOTO N
287971 2026-01-19 19:49:40 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 10:14:22.192 +19:31:21.19 2026-01-11 08:57:45.000 20.1888 g-ZTF PSN ZTF26aabivsv ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aabivsv N
287577 2026-01-16 23:14:03 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 10:14:22.158 +19:31:21.34 2026-01-16 11:09:55.008 19.441 cyan-ATLAS PSN ATLAS26arx ATLAS N
287261 2026-01-15 11:48:47 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 10:14:22.206 +19:31:21.33 2026-01-11 08:57:45.000 20.2573 g-ZTF PSN ZTF26aabivsv ZTF 2026TNSTR.173....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22887 2026-01-30 19:39:12 Megan Newsome Megan Newsome (UT Austin), Sebastian Gomez (UT Austin) FLEET SN Ia 0.0996 1 1 FLEET AT2026aff was selected as a possible TDE by our FLEET program with a P(TDE) = 0.39 (Gomez et al., 2023, ApJ, 949, 113). The redshift of z = 0.0996 was determined from the transient features. We find a best match to SNe Ia using SNID-SAGE (Stoppa et al. in prep: https://github.com/FiorenSt/SNID-SAGE). 2026TNSCR.406....1N
Related files
File Comments Last Modified (UT) Modified By
tns_2026aff_atrep_22887_FLEET.png SNID-SAGE fit to SN 2007if, a SN Ia. 2026-01-30 19:39:12 Megan Newsome
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
22888 2026-01-28 06:44:08 HET / HET-LRS 3600 HET Megan Newsome FLEET tns_2026aff_2026-01-28_06-44-07.58_HET_HET-LRS_FLEET.dat Object

Comments

TNS
System

Mon, 01/19/2026 - 19:49

Object coordinates updated

Object coordinates updated according to AT-report 287971 of Group ZTF
Previous RA, DEC: 10:14:22.206, +19:31:21.33 (153.5925257, +19.5225928)
Updated RA, DEC: 10:14:22.192, +19:31:21.19 (153.592466925, +19.5225519625)