RA/DEC (2000)
23:20:38.959 +42:51:55.54
350.1623304 +42.865427
Type
SN Ia
Redshift
0.016692
Discovery ReportClassification Report
Related AstroNotes: 2025-167
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-06-01 13:56:20.256
TNS AT
Y
Public
Y
Discovery Mag
17.495
Filter
cyan-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), 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 (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (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_2025msz - 2025-06-01 11:08:53 Lick-3m / KAST (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

 ▌GOTO-N_GOTO-2_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
21230 2025-06-01 11:08:53 Lick-3m / KAST R. Michael Rich, Patrick King Jacob Wise ZTF tns_2025msz_2025-06-01_11-08-53.36_Lick-3m_KAST_ZTF.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-05-21 04:49:28 - 2025-05-29 03:20:42 2460816.701025 - 2460824.639365 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493746 2025-05-29 03:20:42 2460824.639365 18.06 0.16 ABMag L-GOTO GOTO-N_GOTO-2 180
493745 2025-05-21 04:49:28 2460816.701025 18.2 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-05-30 09:42:18 - 2025-05-30 09:42:58 2460825.904375 - 2460825.904838 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493339 2025-05-30 09:42:58 2460825.904838 17.4916 0.067966 ABMag r-ZTF P48_ZTF-Cam
493338 2025-05-30 09:42:18 2460825.904375 19.5225 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-05-31 10:21:32 - 2025-05-31 10:21:32 2460826.9316204 - 2460826.9316204 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493340 2025-05-31 10:21:32 2460826.9316204 17.4864 0.071604 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-05-30 13:47:40 - 2025-05-30 13:47:40 2460826.07477 - 2460826.07477 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493275 2025-05-30 13:47:40 2460826.07477 19.32 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-06-01 13:56:20 - 2025-06-01 13:56:20 2460828.08079 - 2460828.08079 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493276 2025-06-01 13:56:20 2460828.08079 17.495 0.052 19.32 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 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
257817 2025-06-05 10:27:44 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 23:20:38.914 +42:51:55.74 2025-05-29 03:20:41.568 18.06 L-GOTO Other GOTO25dgp GOTO N
257616 2025-06-02 08:27:58 Fritz Anjasha Gangopadhyay (SU),Jesper Sollerman (SU),Christoffer Fremling (Caltech) et al. ZTF ZTF 23:20:38.959 +42:51:55.54 2025-05-30 09:42:58.003 17.4916 r-ZTF PSN ZTF25aatdvzt ZTF N
257583 2025-06-01 19:14:10 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 23:20:38.912 +42:51:55.97 2025-06-01 13:56:20.256 17.495 cyan-ATLAS PSN ATLAS25fvx ATLAS 2025TNSTR2060....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
21230 2025-06-05 10:24:46 Jacob Wise Jacob Wise (LJMU), Daniel Perley (LJMU), Patrick King (UCLA), R. Michael Rich (UCLA) ZTF SN Ia 0.016692 1 Add ZTF Spectrum displays Fe II features and Si II absorption characteristic of a SN Ia. Redshift of z = 0.016692 ± 0.000067 from The 2MASS Redshift Survey: Description and Data Release. 2025TNSCR2118....1W
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
21230 2025-06-01 11:08:53 Lick-3m / KAST R. Michael Rich, Patrick King Jacob Wise ZTF tns_2025msz_2025-06-01_11-08-53.36_Lick-3m_KAST_ZTF.txt Object

Comments

TNS
System

Mon, 06/02/2025 - 08:27

Object coordinates updated

Object coordinates updated according to AT-report 257616 of Group ZTF
Previous RA, DEC: 23:20:38.912, +42:51:55.97 (350.162134375, +42.865548125)
Updated RA, DEC: 23:20:38.959, +42:51:55.54 (350.1623304, +42.865427)