RA/DEC (2000)
22:38:43.493 -14:33:00.29
339.681220917 -14.5500806363
Type
SN Ia-91T-like
Redshift
0.104
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-06-20 10:55:53.999
TNS AT
Y
Public
Y
Discovery Mag
20.1462
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_2025oum - 2025-07-03 00:00:00 Lick-3m / KAST (UCSC)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-S_GOTO-4_L
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-STH_ATLAS-03_orange
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_w
   
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
21468 2025-07-03 00:00:00 Lick-3m / KAST Kishore C. Patra Kishore C. Patra UCSC tns_2025oum_2025-07-03_Lick-3m_KAST_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-06-21 15:09:14 - 2025-06-21 15:09:14 2460848.131411 - 2460848.131411 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499134 2025-06-21 15:09:14 2460848.131411 19.9 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-06-29 03:18:47 - 2025-06-29 03:18:47 2460855.638038 - 2460855.638038 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499135 2025-06-29 03:18:47 2460855.638038 18.61 0.1 ABMag L-GOTO GOTO-N_GOTO-2 180
orange-ATLAS ATLAS-STH_ATLAS-03 2025-06-24 00:36:14 - 2025-06-24 00:36:14 2460850.52516 - 2460850.52516 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499545 2025-06-24 00:36:14 2460850.52516 19.23 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-06-30 00:53:24 - 2025-06-30 00:53:24 2460856.53708 - 2460856.53708 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499546 2025-06-30 00:53:24 2460856.53708 18.422 0.088 19.68 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
r-ZTF P48_ZTF-Cam 2025-06-20 10:10:25 - 2025-06-24 11:06:27 2460846.9239005 - 2460850.9628125 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
497909 2025-06-24 11:06:27 2460850.9628125 19.3164 0.105793 ABMag r-ZTF P48_ZTF-Cam
497907 2025-06-20 10:10:25 2460846.9239005 19.8924 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-06-10 10:58:37 - 2025-06-20 10:55:54 2460836.9573727 - 2460846.9554861 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
497908 2025-06-20 10:55:54 2460846.9554861 20.1462 0.163841 ABMag g-ZTF P48_ZTF-Cam
501225 2025-06-20 10:55:54 2460846.9554861 20.1208 0.218042 20.01 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
501224 2025-06-10 10:58:37 2460836.9573727 19.0258 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
w-P1 PS1_GPC1 2025-06-23 13:11:56 - 2025-06-23 13:11:56 2460850.04995 - 2460850.04995 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499078 2025-06-23 13:11:56 2460850.04995 19.67 0.06 22 ABMag w-P1 PS1_GPC1 45 Robot
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
261741 2025-07-06 18:15:24 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 22:38:43.488 -14:33:00.40 2025-06-20 10:55:53.999 20.1208 g-ZTF PSN ZTF25aawterb ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aawterb N
260648 2025-06-30 16:38:31 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 22:38:43.482 -14:33:00.51 2025-06-30 00:53:23.712 18.422 cyan-ATLAS PSN ATLAS25gqq ATLAS N
260472 2025-06-29 06:47:21 GOTO_bot A. Kumar, G. Ramsay, K. Ackley et al. GOTO GOTO 22:38:43.476 -14:33:00.69 2025-06-29 03:18:46.656 18.61 L-GOTO Other GOTO25elm GOTO N
260433 2025-06-28 16:16:35 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 22:38:43.493 -14:33:00.29 2025-06-23 13:11:55.680 19.67 w-P1 PSN PS25drm Pan-STARRS N
259914 2025-06-24 14:52:59 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 22:38:43.498 -14:33:00.44 2025-06-20 10:55:53.999 20.1462 g-ZTF PSN ZTF25aawterb ZTF 2025TNSTR2384....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
21468 2025-07-04 07:04:24 Kishore C. Patra Kishore C. Patra, Ryan J. Foley (UCSC) UCSC SN Ia-91T-like 0.104 1 UCSC We measure Si II 6355 velocity of -9,700  km/s. The redshift was determined using narrow emission lines from the host galaxy. 2025TNSCR2567....1P
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
21468 2025-07-03 00:00:00 Lick-3m / KAST Kishore C. Patra Kishore C. Patra UCSC tns_2025oum_2025-07-03_Lick-3m_KAST_UCSC.flm Object

Comments

TNS
System

Sat, 06/28/2025 - 16:16

Object coordinates updated

Object coordinates updated according to AT-report 260433 of Group Pan-STARRS
Previous RA, DEC: 22:38:43.498, -14:33:00.44 (339.6812404, -14.5501212)
Updated RA, DEC: 22:38:43.493, -14:33:00.29 (339.681220917, -14.5500806363)