RA/DEC (2000)
23:57:38.099 -21:43:08.59
359.408744984 -21.7190513965
Type
SN Ia
Redshift
0.0995
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-11-24 04:31:04.998
TNS AT
Y
Public
Y
Discovery Mag
20.224
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_2025aevs - 2025-12-13 03:08:47 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
 ▌PS2_GPC2_g
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌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
22581 2025-12-13 03:08:47 Lick-3m / KAST 1800 Kyle Davis (UCSC) Kyle Davis (UCSC) UCSC tns_2025aevs_2025-12-13_03-08-47.28_Lick-3m_KAST_UCSC.flm Object We measure a Si II absorption velocity of -11,200 km/s.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-11-09 12:29:35 - 2025-12-03 10:59:09 2460989.020535 - 2461012.957745 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
535959 2025-12-03 10:59:09 2461012.957745 18.53 0.07 ABMag L-GOTO GOTO-S_GOTO-4 270
535958 2025-11-09 12:29:35 2460989.020535 20.1 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
g-P1 PS2_GPC2 2025-11-25 06:05:42 - 2025-11-25 06:05:42 2461004.75396 - 2461004.75396 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
534282 2025-11-25 06:05:42 2461004.75396 19.36 0.09 21 ABMag g-P1 PS2_GPC2 27 Robot
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-12-09 19:46:46 - 2025-12-09 19:46:46 2461019.32414 - 2461019.32414 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537165 2025-12-09 19:46:46 2461019.32414 18.751 0.102 19.56 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
r-ZTF P48_ZTF-Cam 2025-11-12 03:56:29 - 2025-11-24 04:31:05 2460991.6642245 - 2461003.6882523 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
533855 2025-11-24 04:31:05 2461003.6882523 20.224 0.164335 ABMag r-ZTF P48_ZTF-Cam
535248 2025-11-24 04:31:05 2461003.6882523 20.1038 0.298938 19.988 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
533854 2025-11-12 03:56:29 2460991.6642245 19.6351 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
535247 2025-11-12 03:56:29 2460991.6642245 19.6351 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
g-ZTF P48_ZTF-Cam 2025-11-26 04:32:23 - 2025-11-26 04:32:23 2461005.6891551 - 2461005.6891551 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
533856 2025-11-26 04:32:23 2461005.6891551 19.1679 0.15812 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-12-09 07:41:44 - 2025-12-09 07:41:44 2461018.82065 - 2461018.82065 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537164 2025-12-09 07:41:44 2461018.82065 19.16 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
279856 2025-12-09 22:37:44 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 23:57:38.106 -21:43:08.60 2025-12-09 19:46:45.696 18.751 cyan-ATLAS PSN ATLAS25pkl ATLAS N
279324 2025-12-04 10:45:50 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 23:57:38.101 -21:43:09.04 2025-12-03 10:59:08.736 18.53 L-GOTO Other GOTO25kzf GOTO N
278915 2025-11-30 19:17:29 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 23:57:38.098 -21:43:08.40 2025-11-24 04:31:04.999 20.1038 r-ZTF PSN ZTF25acerwiy ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25acerwiy N
278479 2025-11-27 21:30:25 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 23:57:38.099 -21:43:08.59 2025-11-25 06:05:42.144 19.36 g-P1 PSN PS25ilq Pan-STARRS N
278289 2025-11-26 05:23:04 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 23:57:38.101 -21:43:07.80 2025-11-24 04:31:04.998 20.224 r-ZTF PSN ZTF25acerwiy ZTF 2025TNSTR4727....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
22580 2025-12-14 02:26:35 Kyle Davis Kyle Davis (UCSC), Ryan Foley (UCSC) UCSC SN Ia 0.0995 1 UCSC 2025TNSCR4981....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
22581 2025-12-13 03:08:47 Lick-3m / KAST 1800 Kyle Davis (UCSC) Kyle Davis (UCSC) UCSC tns_2025aevs_2025-12-13_03-08-47.28_Lick-3m_KAST_UCSC.flm Object We measure a Si II absorption velocity of -11,200 km/s.

Comments

TNS
System

Thu, 11/27/2025 - 21:30

Object coordinates updated

Object coordinates updated according to AT-report 278479 of Group Pan-STARRS
Previous RA, DEC: 23:57:38.101, -21:43:07.80 (359.4087545, -21.7188331)
Updated RA, DEC: 23:57:38.099, -21:43:08.59 (359.408744984, -21.7190513965)