RA/DEC (2000)
12:12:13.585 +34:14:45.19
183.056605261 +34.2458866565
Type
SN IIb
Redshift
0.02225
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-06-27 05:55:54.001
TNS AT
Y
Public
Y
Discovery Mag
20.0075
Filter
r-ZTF
Reporter/s
Sam Rose (Caltech), Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025pem - 2025-06-28 00:00:00 Keck1 / LRIS (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

 ▌PS2_GPC2_w
 ▌P48_ZTF-Cam_r
 ▌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
21437 2025-06-28 00:00:00 Keck1 / LRIS 300 Kaustav Kashyap Das, Wynn Jacobson-Galán Kaustav Kashyap Das ZTF tns_2025pem_2025-06-28_00-00-00_Keck1_LRIS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2025-12-28 14:21:20 - 2025-12-28 14:21:20 2461038.09815 - 2461038.09815 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
544998 2025-12-28 14:21:20 2461038.09815 20.77 0.08 22 ABMag w-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2025-06-24 06:51:48 - 2025-06-27 05:55:54 2460850.7859722 - 2460853.7471528 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
498998 2025-06-27 05:55:54 2460853.7471528 20.0075 0.209204 ABMag r-ZTF P48_ZTF-Cam
498997 2025-06-24 06:51:48 2460850.7859722 19.6026 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-06-27 06:56:35 - 2025-07-01 06:13:57 2460853.78929 - 2460857.75969 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499987 2025-07-01 06:13:57 2460857.75969 18.881 0.162 19.22 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
499986 2025-06-27 06:56:35 2460853.78929 17.61 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
283858 2025-12-29 23:01:23 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 12:12:13.585 +34:14:45.19 2025-12-28 14:21:20.160 20.77 w-P1 PSN PS25khq Pan-STARRS N
261021 2025-07-01 12:51:12 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 12:12:13.581 +34:14:45.66 2025-07-01 06:13:57.216 18.881 orange-ATLAS PSN ATLAS25gtn ATLAS N
260383 2025-06-28 08:28:09 Fritz Sam Rose (Caltech),Jesper Sollerman (SU),Christoffer Fremling (Caltech) et al. ZTF ZTF 12:12:13.601 +34:14:45.52 2025-06-27 05:55:54.001 20.0075 r-ZTF PSN ZTF25aaxvwdu ZTF 2025TNSTR2457....1R N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21437 2025-06-30 17:01:58 ZTF_Bot1 K. Das, S. Covarrubias, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration ZTF SN IIb 0.02225 1 ZTF 2025TNSCR2503....1D
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
21437 2025-06-28 00:00:00 Keck1 / LRIS 300 Kaustav Kashyap Das, Wynn Jacobson-Galán Kaustav Kashyap Das ZTF tns_2025pem_2025-06-28_00-00-00_Keck1_LRIS_ZTF.ascii Object

Comments

TNS
System

Mon, 12/29/2025 - 23:01

Object coordinates updated

Object coordinates updated according to AT-report 283858 of Group Pan-STARRS
Previous RA, DEC: 12:12:13.601, +34:14:45.52 (183.0566702, +34.2459778)
Updated RA, DEC: 12:12:13.585, +34:14:45.19 (183.056605261, +34.2458866565)