RA/DEC (2000)
21:17:39.158 -22:47:26.78
319.4131604 -22.7907729
Type
SN Ia
Redshift
0.025981
Discovery ReportClassification Report
Related AstroNotes: 2025-188
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-06-17 08:28:35.616
TNS AT
Y
Public
Y
Discovery Mag
16.937
Filter
orange-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_2025nwy - 2025-06-21 08:00:24 P60 / SEDM (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-S_GOTO-4_L
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
   
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
21367 2025-06-21 08:00:24 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2025nwy_2025-06-21_08-00-24.265617_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-06-21 13:36:52 - 2025-06-21 13:36:52 2460848.067268 - 2460848.067268 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
498812 2025-06-21 13:36:52 2460848.067268 16.67 0.02 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-N_GOTO-2 2025-06-08 03:37:24 - 2025-06-08 03:37:24 2460834.650973 - 2460834.650973 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
498811 2025-06-08 03:37:24 2460834.650973 18.7 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-06-11 07:00:50 - 2025-06-17 08:28:36 2460837.79225 - 2460843.85319 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
495934 2025-06-17 08:28:36 2460843.85319 16.937 0.058 18.51 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
495933 2025-06-11 07:00:50 2460837.79225 18.39 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-06-20 10:05:39 - 2025-06-20 10:05:39 2460846.9205903 - 2460846.9205903 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496728 2025-06-20 10:05:39 2460846.9205903 16.7821 0.0329768 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-06-18 10:07:07 - 2025-06-18 10:07:07 2460844.9216088 - 2460844.9216088 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496727 2025-06-18 10:07:07 2460844.9216088 16.8769 0.039305 ABMag g-ZTF P48_ZTF-Cam
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
260311 2025-06-27 16:26:06 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 21:17:39.152 -22:47:26.87 2025-06-21 13:36:52.128 16.67 L-GOTO Other GOTO25dyb GOTO N
259302 2025-06-20 11:13:13 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 21:17:39.158 -22:47:26.78 2025-06-18 10:07:07.000 16.8769 g-ZTF PSN ZTF25aavqrpc ZTF N
258942 2025-06-17 14:35:37 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:17:39.149 -22:47:26.87 2025-06-17 08:28:35.616 16.937 orange-ATLAS PSN ATLAS25gey ATLAS 2025TNSTR2251....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
21367 2025-06-21 08:43:44 ZTF_Bot1 C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.025981 1 Add ZTF 2025TNSCR2342....1F
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
21367 2025-06-21 08:00:24 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2025nwy_2025-06-21_08-00-24.265617_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Fri, 06/20/2025 - 11:13

Object coordinates updated

Object coordinates updated according to AT-report 259302 of Group ZTF
Previous RA, DEC: 21:17:39.149, -22:47:26.87 (319.413119, -22.790797)
Updated RA, DEC: 21:17:39.158, -22:47:26.78 (319.4131604, -22.7907729)

Ken
Smith

Tue, 06/17/2025 - 15:53

Discovered by C. Kukuckova, N. Keenan, E. Boyd

Discovered by C. Kukuckova, N. Keenan (Belfast High School), E. Boyd (Glenlola Collegiate) as part of a QUB Work Experience visit.