RA/DEC (2000)
09:37:39.297 -20:32:17.81
144.4137373 -20.538281
Type
SN Ia-91bg-like
Redshift
0.034254
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-12-20 10:02:43.998
TNS AT
Y
Public
Y
Discovery Mag
20.2362
Filter
r-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025ahxq - 2026-01-14 10:05:41 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
▌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

 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌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
22791 2026-01-14 10:05:41 P60 / SEDM 2700 SEDmRobot ZTF tns_2025ahxq_2026-01-14_10-05-41.310469_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-12-18 14:56:26 - 2025-12-23 14:35:42 2461028.12252 - 2461033.108115 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
542199 2025-12-23 14:35:42 2461033.108115 19.06 0.08 ABMag L-GOTO GOTO-S_GOTO-3 180
542198 2025-12-18 14:56:26 2461028.12252 20.5 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-01-04 06:15:19 - 2026-01-04 06:15:19 2461044.76064 - 2461044.76064 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
547042 2026-01-04 06:15:19 2461044.76064 17.908 0.135 18.33 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
r-ZTF P48_ZTF-Cam 2025-12-20 10:02:44 - 2025-12-22 10:02:03 2461029.9185648 - 2461031.9180903 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
541762 2025-12-22 10:02:03 2461031.9180903 19.2294 0.0969706 ABMag r-ZTF P48_ZTF-Cam
541761 2025-12-20 10:02:44 2461029.9185648 20.2362 0.18121 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-12-19 12:32:33 - 2025-12-19 12:32:33 2461029.0226042 - 2461029.0226042 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
541760 2025-12-19 12:32:33 2461029.0226042 19.9668 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-01-02 14:15:04 - 2026-01-02 14:15:04 2461043.0938 - 2461043.0938 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
547041 2026-01-02 14:15:04 2461043.0938 18.29 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
285700 2026-01-04 09:55:53 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 09:37:39.214 -20:32:17.26 2026-01-04 06:15:19.296 17.908 orange-ATLAS PSN ATLAS26aas ATLAS N
282100 2025-12-23 17:05:29 GOTO_bot G. Ramsay, K. Ackley, M. Dyer et al. GOTO GOTO 09:37:39.275 -20:32:18.08 2025-12-23 14:35:41.568 19.06 L-GOTO Other GOTO25mld GOTO N
281900 2025-12-22 12:09:33 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 09:37:39.297 -20:32:17.81 2025-12-20 10:02:43.998 20.2362 r-ZTF PSN ZTF25acjnfef ZTF 2025TNSTR5128....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
22790 2026-01-16 16:45:23 ZTF_Bot1 J. Johansson, J. Castaneda Jaimes, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia-91bg-like 0.034254 1 ZTF 2026TNSCR.192....1J
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
22791 2026-01-14 10:05:41 P60 / SEDM 2700 SEDmRobot ZTF tns_2025ahxq_2026-01-14_10-05-41.310469_P60_SEDM_ZTF.ascii Object

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