RA/DEC (2000)
07:57:30.582 +39:35:26.14
119.377423675 +39.5905943475
Type
SN Ia-91T-like
Redshift
0.09
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-12-11 11:28:20.064
TNS AT
Y
Public
Y
Discovery Mag
19.262
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025agkk - 2025-12-13 11:06:18 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

 ▌WFST_WFST-WFC_r
 ▌LAST_LAST-Cam_Clear
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌PS1_GPC1_z
   
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
22584 2025-12-13 11:06:18 Lick-3m / KAST 2400 Kyle Davis (UCSC) Kyle Davis (UCSC) UCSC tns_2025agkk_2025-12-13_11-06-17.72_Lick-3m_KAST_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-WFST WFST_WFST-WFC 2025-12-04 17:45:36 - 2025-12-13 18:50:24 2461014.24 - 2461023.285 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
567625 2025-12-13 18:50:24 2461023.285 19.03 0.02 ABMag r-WFST WFST_WFST-WFC 30
567624 2025-12-04 17:45:36 2461014.24 20.74 ABMag r-WFST WFST_WFST-WFC 30 [Last non detection]
Clear- LAST_LAST-Cam 2024-03-03 18:49:12 - 2025-12-17 22:26:02 2460373.28417 - 2461027.43475 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
539973 2025-12-17 22:26:02 2461027.43475 18.98 ABMag Clear- LAST_LAST-Cam 400
539972 2024-03-03 18:49:12 2460373.28417 21.96 ABMag Clear- LAST_LAST-Cam 11440 [Last non detection]
g-ZTF P48_ZTF-Cam 2025-12-06 10:26:29 - 2025-12-12 07:48:45 2461015.9350579 - 2461021.8255208 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537985 2025-12-12 07:48:45 2461021.8255208 19.0367 0.112743 ABMag g-ZTF P48_ZTF-Cam
537984 2025-12-08 10:53:07 2461017.9535532 19.7104 0.180911 ABMag g-ZTF P48_ZTF-Cam
537983 2025-12-06 10:26:29 2461015.9350579 20.0042 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-12-11 11:28:20 - 2025-12-11 11:28:20 2461020.97801 - 2461020.97801 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537711 2025-12-11 11:28:20 2461020.97801 19.262 0.191 19.38 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-12-10 12:48:17 - 2025-12-10 12:48:17 2461020.03353 - 2461020.03353 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537710 2025-12-10 12:48:17 2461020.03353 19.24 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
z-P1 PS1_GPC1 2025-12-11 11:52:10 - 2025-12-11 11:52:10 2461020.99456 - 2461020.99456 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538841 2025-12-11 11:52:10 2461020.99456 19.58 0.13 20.4 ABMag z-P1 PS1_GPC1 27 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
296000 2026-03-20 10:28:50 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 07:57:30.580 +39:35:26.12 2025-12-13 18:50:24.000 19.03 r-WFST PSN WFST251213bfssj WFST N
281095 2025-12-18 08:16:18 LAST_Bot1 E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al. LAST LAST 07:57:30.547 +39:35:25.48 2025-12-17 22:26:02.400 18.98 Clear- PSN LAST N
280576 2025-12-14 19:30:31 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 07:57:30.582 +39:35:26.14 2025-12-11 11:52:09.984 19.58 z-P1 PSN PS25iok Pan-STARRS N
280202 2025-12-12 08:35:07 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 07:57:30.589 +39:35:26.26 2025-12-08 10:53:06.996 19.7104 g-ZTF PSN ZTF25acgqggy ZTF N
280094 2025-12-11 16:14:40 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 07:57:30.530 +39:35:26.37 2025-12-11 11:28:20.064 19.262 orange-ATLAS PSN ATLAS25pms ATLAS 2025TNSTR4923....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22583 2025-12-14 02:35:02 Kyle Davis Kyle Davis (UCSC), Ryan Foley (UCSC) UCSC SN Ia-91T-like 0.09 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
22584 2025-12-13 11:06:18 Lick-3m / KAST 2400 Kyle Davis (UCSC) Kyle Davis (UCSC) UCSC tns_2025agkk_2025-12-13_11-06-17.72_Lick-3m_KAST_UCSC.flm Object

Comments

TNS
System

Sun, 12/14/2025 - 19:30

Object coordinates updated

Object coordinates updated according to AT-report 280576 of Group Pan-STARRS
Previous RA, DEC: 07:57:30.589, +39:35:26.26 (119.3774537, +39.5906277)
Updated RA, DEC: 07:57:30.582, +39:35:26.14 (119.377423675, +39.5905943475)

TNS
System

Fri, 12/12/2025 - 08:35

Object coordinates updated

Object coordinates updated according to AT-report 280202 of Group ZTF
Previous RA, DEC: 07:57:30.530, +39:35:26.37 (119.37721, +39.5906583333)
Updated RA, DEC: 07:57:30.589, +39:35:26.26 (119.3774537, +39.5906277)