RA/DEC (2000)
09:54:16.549 +68:19:56.29
148.5689536 +68.3323026
Type
SN IIb
Redshift
0.01463
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-09-30 11:27:30.997
TNS AT
Y
Public
Y
Discovery Mag
18.3146
Filter
g-ZTF
Reporter/s
K-Ryan Hinds (Caltech), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025yyn - 2025-10-01 12:16:07 P200 / NGPS (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

 ▌LAST_LAST-Cam_Clear
 ▌GOTO-N_GOTO-2_L
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_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
22142 2025-10-01 12:16:07 P200 / NGPS K-Ryan Hinds, Nicholas Earley, Maggie Li, Sam Rose K-Ryan Hinds, Nicholas Earley, Maggie Li, Sam Rose ZTF tns_2025yyn_2025-10-01_12-16-07_P200_NGPS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2024-03-04 21:31:21 - 2025-11-22 02:06:54 2460374.39677 - 2461001.58812 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
533029 2025-11-22 02:06:54 2461001.58812 19.27 ABMag Clear- LAST_LAST-Cam 400
533028 2024-03-04 21:31:21 2460374.39677 21.54 ABMag Clear- LAST_LAST-Cam 2360 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-10-12 05:13:11 - 2025-10-12 05:13:11 2460960.717486 - 2460960.717486 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
523395 2025-10-12 05:13:11 2460960.717486 18.35 0.09 ABMag L-GOTO GOTO-N_GOTO-2 180
L-GOTO GOTO-N_GOTO-1 2025-05-29 22:30:46 - 2025-05-29 22:30:46 2460825.438034 - 2460825.438034 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
523394 2025-05-29 22:30:46 2460825.438034 19.9 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-30 11:49:08 - 2025-09-30 11:49:08 2460948.9924537 - 2460948.9924537 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521153 2025-09-30 11:49:08 2460948.9924537 17.3262 0.034426 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-09-30 11:27:31 - 2025-09-30 11:27:31 2460948.9774421 - 2460948.9774421 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521152 2025-09-30 11:27:31 2460948.9774421 18.3146 0.068404 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-06-15 06:32:36 - 2025-10-03 14:17:14 2460841.77264 - 2460952.0953 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522144 2025-10-03 14:17:14 2460952.0953 17.412 0.053 19.06 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
522143 2025-06-15 06:32:36 2460841.77264 19.16 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
277899 2025-11-22 07:08:32 LAST_Bot1 E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al. LAST LAST 09:54:16.571 +68:19:55.83 2025-11-22 02:06:53.568 19.27 Clear- PSN LAST N
273124 2025-10-13 09:24:10 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 09:54:16.601 +68:19:56.48 2025-10-12 05:13:11.136 18.35 L-GOTO Other GOTO25ikr GOTO N
272436 2025-10-03 17:39:02 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 09:54:16.571 +68:19:56.49 2025-10-03 14:17:13.920 17.412 orange-ATLAS PSN ATLAS25mio ATLAS N
271896 2025-09-30 16:59:53 Fritz K-Ryan Hinds (Caltech), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 09:54:16.549 +68:19:56.29 2025-09-30 11:27:30.997 18.3146 g-ZTF PSN ZTF25abupdae ZTF 2025TNSTR3935....1H N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22142 2025-10-02 22:15:55 ZTF_Bot1 S. Rose, K. Das, A. Mehla, C. Fremling (Caltech), M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration ZTF SN IIb 0.01463 1 ZTF 2025TNSCR3975....1R
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
22142 2025-10-01 12:16:07 P200 / NGPS K-Ryan Hinds, Nicholas Earley, Maggie Li, Sam Rose K-Ryan Hinds, Nicholas Earley, Maggie Li, Sam Rose ZTF tns_2025yyn_2025-10-01_12-16-07_P200_NGPS_ZTF.ascii Object

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