RA/DEC (2000)
00:23:38.496 -01:27:32.77
5.9103999 -1.4591033
Type
SN Ibn
Redshift
0.067
Discovery ReportClassification Report
Related AstroNotes: 2025-347
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-12-17 06:02:01.996
TNS AT
Y
Public
Y
Discovery Mag
20.1808
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_2025ahnj - 2025-12-21 05:06:12 Keck1 / LRIS (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
   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
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌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
22665 2025-12-21 05:06:12 Keck1 / LRIS 300 Kaustav Das, Maggie Li Kaustav Das ZTF tns_AT_2025ahnj_2025-12-21_05-06-11.615_Keck1_LRIS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-12-22 19:33:52 - 2025-12-22 19:33:52 2461032.31519 - 2461032.31519 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
541959 2025-12-22 19:33:52 2461032.31519 18.115 0.132 19.9 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-N_GOTO-2 2025-12-09 21:01:19 - 2025-12-09 21:01:19 2461019.375922 - 2461019.375922 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
544983 2025-12-09 21:01:19 2461019.375922 20 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-12-14 19:18:50 - 2025-12-14 19:18:50 2461024.30475 - 2461024.30475 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
541958 2025-12-14 19:18:50 2461024.30475 19.59 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-12-29 20:04:15 - 2025-12-29 20:04:15 2461039.336286 - 2461039.336286 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
544984 2025-12-29 20:04:15 2461039.336286 18.8 0.11 ABMag L-GOTO GOTO-N_GOTO-1 180
r-ZTF P48_ZTF-Cam 2025-12-17 06:02:02 - 2025-12-17 06:02:02 2461026.751412 - 2461026.751412 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
540462 2025-12-17 06:02:02 2461026.751412 20.1808 0.178079 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-12-17 04:53:53 - 2025-12-19 04:12:32 2461026.7040856 - 2461028.6753704 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
540463 2025-12-19 04:12:32 2461028.6753704 18.6009 0.0853055 ABMag g-ZTF P48_ZTF-Cam
540461 2025-12-17 04:53:53 2461026.7040856 20.3777 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
283849 2025-12-29 22:57:08 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 00:23:38.504 -01:27:32.68 2025-12-29 20:04:15.456 18.8 L-GOTO Other GOTO25mvz GOTO N
281977 2025-12-22 20:59:01 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland (IfA et al. ATLAS ATLAS 00:23:38.494 -01:27:32.71 2025-12-22 19:33:52.416 18.115 wide-ATLAS PSN ATLAS25qcw ATLAS N
281332 2025-12-19 05:27:23 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 00:23:38.496 -01:27:32.77 2025-12-17 06:02:01.996 20.1808 r-ZTF PSN ZTF25acipmxl ZTF 2025TNSTR5072....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
22664 2025-12-22 04:02:54 Kaustav Kashyap Das Kaustav Kashyap Das ZTF SN Ibn 0.067 1 ZTF The classification is based on weak He I P-Cygni features, narrow C II and C III emission lines. 2025TNSCR5138....1D
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
22665 2025-12-21 05:06:12 Keck1 / LRIS 300 Kaustav Das, Maggie Li Kaustav Das ZTF tns_AT_2025ahnj_2025-12-21_05-06-11.615_Keck1_LRIS_ZTF.ascii Object

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