RA/DEC (2000)
00:25:33.678 +02:16:17.57
6.3903238 +2.2715483
Type
SN II
Redshift
0.0778
Discovery ReportClassification Report
Related AstroNotes: 2025-307
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-09-26 07:55:02.997
TNS AT
Y
Public
Y
Discovery Mag
20.7218
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_2025aawk - 2025-11-22 04:49:32 Lick-3m / KAST (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
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌GOTO-N_GOTO-1_L
 ▌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
22441 2025-11-22 04:49:32 Lick-3m / KAST Christian Tapper, Emily Elien Aleksandra Bochenek ZTF tns_2025aawk_2025-11-22_04-49-31.98_Lick-3m_KAST_ZTF.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-10-22 22:23:22 - 2025-10-22 22:23:22 2460971.43289 - 2460971.43289 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
525913 2025-10-22 22:23:22 2460971.43289 20.024 0.143 20.36 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
Clear- LAST_LAST-Cam 2025-10-30 16:49:18 - 2025-11-16 17:03:30 2460979.2009 - 2460996.21076 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
531498 2025-11-16 17:03:30 2460996.21076 19.63 ABMag Clear- LAST_LAST-Cam 400
531497 2025-10-30 16:49:18 2460979.2009 19.66 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-10-21 21:37:48 - 2025-10-21 21:37:48 2460970.40125 - 2460970.40125 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
525912 2025-10-21 21:37:48 2460970.40125 19.56 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-09-16 00:53:39 - 2025-09-29 23:58:37 2460934.537257 - 2460948.499042 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
526415 2025-09-29 23:58:37 2460948.499042 20.05 0.21 ABMag L-GOTO GOTO-N_GOTO-1 180
526414 2025-09-16 00:53:39 2460934.537257 20.3 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2025-09-24 08:37:10 - 2025-10-19 07:43:08 2460942.8591435 - 2460967.8216204 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524812 2025-10-19 07:43:08 2460967.8216204 19.9701 0.15864 ABMag g-ZTF P48_ZTF-Cam
524811 2025-09-26 07:55:03 2460944.8298958 20.7218 0.210065 ABMag g-ZTF P48_ZTF-Cam
524810 2025-09-24 08:37:10 2460942.8591435 20.4132 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
277083 2025-11-16 18:47:44 LAST_Bot1 E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al. LAST LAST 00:25:33.708 +02:16:17.50 2025-11-16 17:03:29.664 19.63 Clear- PSN LAST N
274602 2025-10-24 08:42:54 GOTO_bot S. Belkin,D. O'Neill,K. Ackley et al. GOTO GOTO 00:25:33.714 +02:16:18.53 2025-09-29 23:58:37.056 20.05 L-GOTO Other GOTO25jbc GOTO N
274359 2025-10-23 09:35:17 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 00:25:33.711 +02:16:17.80 2025-10-22 22:23:21.696 20.024 wide-ATLAS PSN ATLAS25ndr ATLAS N
273875 2025-10-19 09:10:52 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 00:25:33.678 +02:16:17.57 2025-09-26 07:55:02.997 20.7218 g-ZTF PSN ZTF25abubydw ZTF 2025TNSTR4191....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
22440 2025-11-25 00:14:21 Jacob Wise Jacob Wise (LJMU), Aleksandra Bochenek (LJMU), Daniel Perley (LJMU), Zoe McGrath (LJMU), Christian Tapper (UCLA), Emily Elien (UCLA), R. Michael Rich (UCLA) ZTF SN II 0.0778 1 ZTF Spectrum displays broad hydrogen balmer P-Cygni features characteristic of a SN II. Redshift of z = 0.0778 obtained from host galaxy emission lines. We note that the transient has been rising for ~65 days thus far, with ~60 days of activity before the rise began, in ZTF forced photometry. The spectrum appears reminiscent of the peculiar 1987a-like supernova 2021aatd at a phase of +83 days (Szalai et al. 2024). 2025TNSCR4716....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
22441 2025-11-22 04:49:32 Lick-3m / KAST Christian Tapper, Emily Elien Aleksandra Bochenek ZTF tns_2025aawk_2025-11-22_04-49-31.98_Lick-3m_KAST_ZTF.txt Object

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