RA/DEC (2000)
23:16:23.753 +24:29:53.05
349.0989692 +24.4980699
Type
SN II
Redshift
0.028043
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-09-07 08:02:18.997
TNS AT
Y
Public
Y
Discovery Mag
19.4016
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_2025xdd - 2025-09-15 03:35:37 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
 ▌GOTO-N_GOTO-2_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌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
22024 2025-09-15 03:35:37 P60 / SEDM 2700 SEDmRobot ZTF tns_2025xdd_2025-09-15_03-35-37.428853_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-09-14 02:40:31 - 2025-09-14 02:40:31 2460932.61147 - 2460932.61147 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517034 2025-09-14 02:40:31 2460932.61147 18.746 0.098 19.79 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-N_GOTO-2 2025-09-11 23:01:41 - 2025-09-12 21:31:30 2460930.459499 - 2460931.396868 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516926 2025-09-12 21:31:30 2460931.396868 19.39 0.21 ABMag L-GOTO GOTO-N_GOTO-2 135
516925 2025-09-11 23:01:41 2460930.459499 19.2 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-08-26 04:49:53 - 2025-08-26 04:49:53 2460913.7013079 - 2460913.7013079 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
586080 2025-08-26 04:49:53 2460913.7013079 20.6 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-09-23 01:01:05 - 2025-09-23 01:01:05 2460941.542419 - 2460941.542419 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
586081 2025-09-23 01:01:05 2460941.542419 18.75 0.14 19.09 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic
r-ZTF P48_ZTF-Cam 2025-09-06 09:11:04 - 2025-09-09 07:19:07 2460924.8826852 - 2460927.8049421 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516184 2025-09-09 07:19:07 2460927.8049421 19.5874 0.194196 ABMag r-ZTF P48_ZTF-Cam
516182 2025-09-06 09:11:04 2460924.8826852 20.2731 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-09-07 08:02:19 - 2025-09-07 08:02:19 2460925.8349421 - 2460925.8349421 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516183 2025-09-07 08:02:19 2460925.8349421 19.4016 0.216339 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-09-13 11:03:03 - 2025-09-13 11:03:03 2460931.96045 - 2460931.96045 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517033 2025-09-13 11:03:03 2460931.96045 16.31 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
305604 2026-05-27 14:28:24 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 23:16:23.722 +24:29:52.85 2025-09-23 01:01:05.000 18.75 BG-q-BlackGem PSN BGEM J231623.72+242952.8 BlackGEM N
269990 2025-09-14 18:05:06 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 23:16:23.718 +24:29:53.15 2025-09-14 02:40:31.008 18.746 wide-ATLAS PSN ATLAS25lgj ATLAS N
269935 2025-09-14 11:51:32 GOTO_bot D. O'Neill, G. Ramsay, K. Ackley et al. GOTO GOTO 23:16:23.712 +24:29:52.72 2025-09-12 21:31:29.568 19.39 L-GOTO Other GOTO25gzp GOTO N
269567 2025-09-09 07:47:59 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 23:16:23.753 +24:29:53.05 2025-09-07 08:02:18.997 19.4016 g-ZTF PSN ZTF25abphhyk ZTF 2025TNSTR3635....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
22024 2025-09-15 17:56:30 ZTF_Bot1 J. Sollerman, K. Das, A. Mehla, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration ZTF SN II 0.028043 1 ZTF 2025TNSCR3715....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
22024 2025-09-15 03:35:37 P60 / SEDM 2700 SEDmRobot ZTF tns_2025xdd_2025-09-15_03-35-37.428853_P60_SEDM_ZTF.ascii Object

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