RA/DEC (2000)
04:21:01.663 -09:17:22.36
65.2569274 -9.2895445
Type
SN II
Redshift
0.04
Discovery ReportClassification Report
Related AstroNotes: 2025-304
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-10-11 08:32:54.003
TNS AT
Y
Public
Y
Discovery Mag
19.1982
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_2025zwn - 2025-10-21 06:04:52 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
   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
 ▌GOTO-S_GOTO-3_L
 ▌GOTO-N_GOTO-1_L
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌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
22254 2025-10-21 06:04:52 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025zwn_2025-10-21_06-04-52.115224_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-10-11 03:38:15 - 2025-10-12 02:34:47 2460959.65156 - 2460960.60749 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524063 2025-10-12 02:34:47 2460960.60749 18.908 0.111 19.49 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
524062 2025-10-11 03:38:15 2460959.65156 19.26 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
Clear- LAST_LAST-Cam 2025-10-11 23:12:24 - 2025-10-17 22:22:10 2460960.46695 - 2460966.43206 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524504 2025-10-17 22:22:10 2460966.43206 18.81 ABMag Clear- LAST_LAST-Cam 400
524503 2025-10-11 23:12:24 2460960.46695 19.8 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-10-14 18:10:01 - 2025-10-14 18:10:01 2460963.256963 - 2460963.256963 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
523951 2025-10-14 18:10:01 2460963.256963 18.88 0.07 ABMag L-GOTO GOTO-S_GOTO-3 180
L-GOTO GOTO-N_GOTO-1 2025-10-09 03:21:06 - 2025-10-09 03:21:06 2460957.639652 - 2460957.639652 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
523950 2025-10-09 03:21:06 2460957.639652 18 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-10-28 07:26:12 - 2025-10-28 07:26:12 2460976.8098611 - 2460976.8098611 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
527476 2025-10-28 07:26:12 2460976.8098611 18.4 0.05 20.84 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-10-07 08:30:01 - 2025-10-07 08:30:01 2460955.8541782 - 2460955.8541782 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
527475 2025-10-07 08:30:01 2460955.8541782 19.3 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2025-10-11 08:32:54 - 2025-10-11 08:32:54 2460959.8561806 - 2460959.8561806 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522901 2025-10-11 08:32:54 2460959.8561806 19.1982 0.162808 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-10-08 10:03:04 - 2025-10-11 10:00:52 2460956.9187963 - 2460959.9172685 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522902 2025-10-11 10:00:52 2460959.9172685 19.1986 0.154114 ABMag g-ZTF P48_ZTF-Cam
522900 2025-10-08 10:03:04 2460956.9187963 19.2674 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
275069 2025-10-28 11:40:03 BlackGEM_Bot1 P. Groot,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 04:21:01.680 -09:17:22.27 2025-10-28 07:26:12.000 18.4 BG-q-BlackGem PSN BGEM J042101.68-091722.3 BlackGEM N
273745 2025-10-18 03:26:08 LAST_Bot1 E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al. LAST LAST 04:21:01.673 -09:17:22.39 2025-10-17 22:22:09.984 18.81 Clear- PSN LAST N
273465 2025-10-15 12:51:17 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 04:21:01.656 -09:17:22.30 2025-10-12 02:34:47.136 18.908 wide-ATLAS PSN ATLAS25msl ATLAS N
273409 2025-10-15 07:20:50 GOTO_bot S. Belkin,G. Ramsay,K. Ackley et al. GOTO GOTO 04:21:01.666 -09:17:22.41 2025-10-14 18:10:01.344 18.88 L-GOTO Other GOTO25iok GOTO N
272833 2025-10-11 18:29:35 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 04:21:01.663 -09:17:22.36 2025-10-11 08:32:54.003 19.1982 r-ZTF PSN ZTF25abwkiga ZTF 2025TNSTR4073....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
22254 2025-10-21 07:10:42 ZTF_Bot1 J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN II 0.04 1 ZTF 2025TNSCR4235....1S
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
22254 2025-10-21 06:04:52 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025zwn_2025-10-21_06-04-52.115224_P60_SEDM_ZTF.ascii Object

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