RA/DEC (2000)
16:43:39.025 +27:01:26.38
250.9126053 +27.0239931
Type
SLSN-I
Redshift
0.2125
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-09-08 04:23:01.996
TNS AT
Y
Public
Y
Discovery Mag
20.315
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_2025yjj - 2025-10-12 20:45:20 NOT / ALFOSC (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

 ▌GOTO-N_GOTO-2_L
 ▌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
22204 2025-10-12 20:45:20 NOT / ALFOSC 1800 Avinash Singh Avinash Singh ZTF tns_2025yjj_2025-10-12_20-45-20.343_NOT_ALFOSC_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-10-02 20:06:26 - 2025-10-02 20:06:26 2460951.337796 - 2460951.337796 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521957 2025-10-02 20:06:26 2460951.337796 18.73 0.12 ABMag L-GOTO GOTO-N_GOTO-2 180
L-GOTO GOTO-N_GOTO-1 2025-09-06 22:30:41 - 2025-09-06 22:30:41 2460925.437969 - 2460925.437969 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521956 2025-09-06 22:30:41 2460925.437969 19.1 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-08 04:23:02 - 2025-09-08 04:23:02 2460926.682662 - 2460926.682662 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519481 2025-09-08 04:23:02 2460926.682662 20.315 0.198737 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-09-06 05:10:00 - 2025-09-24 03:13:12 2460924.7152778 - 2460942.6341667 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519482 2025-09-24 03:13:12 2460942.6341667 19.3492 0.134404 ABMag g-ZTF P48_ZTF-Cam
519480 2025-09-06 05:10:00 2460924.7152778 19.9552 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
272363 2025-10-02 21:35:11 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 16:43:39.059 +27:01:26.26 2025-10-02 20:06:25.920 18.73 L-GOTO Other GOTO25ifb GOTO N
271113 2025-09-24 04:35:21 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 16:43:39.025 +27:01:26.38 2025-09-08 04:23:01.996 20.315 r-ZTF PSN ZTF25abqiaaj ZTF 2025TNSTR3850....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
22204 2025-10-13 16:20:57 Steve Schulze Amar Aryan (NCU), Daniel A. Perley (LJMU), Steve Schulze (CIERA, NU), Avinash Singh (OKC, SU) report on behalf of the ZTF SLSN Science Working Group ZTF SLSN-I 0.2125 1 ZTF We matched the spectrum with NGSF (Goldwasser et al., 2022, AstroNote, 2022-191) and SNID-SAGE (Stoppa et al., https://github.com/FiorenSt/SNID-SAGE). We get good matches with SLSN-I templates at z=0.2125. 2025TNSCR4109....1A
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
22204 2025-10-12 20:45:20 NOT / ALFOSC 1800 Avinash Singh Avinash Singh ZTF tns_2025yjj_2025-10-12_20-45-20.343_NOT_ALFOSC_ZTF.ascii Object

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