RA/DEC (2000)
03:03:23.043 -28:18:42.77
45.8460140379 -28.3118811931
Type
SN II
Redshift
0.0206
Discovery ReportClassification Report
Related AstroNotes: 2025-169
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-06-02 03:55:54.048
TNS AT
Y
Public
Y
Discovery Mag
17.666
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_2025mty - 2025-07-12 19:12:00 ANU-2.3m / WiFeS (None)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
 ▌ATLAS-STH_ATLAS-03_orange
 ▌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
21842 2025-07-12 19:12:00 ANU-2.3m / WiFeS 1200 Robotic C. Lidman None tns_2025mty_2025-07-12.8_ANU-2.3m_WiFeS_None.dat tns_2025mty_2025-07-12.8_ANU-2.3m_WiFeS_None.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-02-22 10:24:05 - 2025-06-13 19:01:05 2460728.933393 - 2460840.292417 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494970 2025-06-13 19:01:05 2460840.292417 18.28 0.11 ABMag L-GOTO GOTO-S_GOTO-4 180
494969 2025-02-22 10:24:05 2460728.933393 20 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-03-24 19:02:48 - 2025-06-02 03:55:54 2460759.29361 - 2460828.66382 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493359 2025-06-02 03:55:54 2460828.66382 17.666 0.09 18.93 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
493358 2025-03-24 19:02:48 2460759.29361 18.79 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-09-17 13:31:35 - 2025-09-17 13:31:35 2460936.0636 - 2460936.0636 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518943 2025-09-17 13:31:35 2460936.0636 21.16 0.12 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
270867 2025-09-21 14:52:02 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 03:03:23.043 -28:18:42.77 2025-09-17 13:31:35.040 21.16 w-P1 PSN PS25hoy Pan-STARRS N
258437 2025-06-14 07:35:31 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 03:03:23.047 -28:18:42.59 2025-06-13 19:01:05.088 18.28 L-GOTO Other GOTO25dmc GOTO N
257623 2025-06-02 11:39:40 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 03:03:23.045 -28:18:42.79 2025-06-02 03:55:54.048 17.666 orange-ATLAS PSN ATLAS25fwd ATLAS 2025TNSTR2071....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
21842 2025-08-22 00:03:43 Chris Lidman C. Lidman (ANU), B. P. Schmidt (ANU), K. Auchettl (University of Melbourne/UCSC), D. Cao (ANU), B. Martin (ANU), L. Rauf (ANU), and B. E. Tucker (ANU) None SN II 0.0206 1 Classified with Superfit 2025TNSCR3328....1L
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
21842 2025-07-12 19:12:00 ANU-2.3m / WiFeS 1200 Robotic C. Lidman None tns_2025mty_2025-07-12.8_ANU-2.3m_WiFeS_None.dat tns_2025mty_2025-07-12.8_ANU-2.3m_WiFeS_None.fits Object

Comments

TNS
System

Sun, 09/21/2025 - 14:52

Object coordinates updated

Object coordinates updated according to AT-report 270867 of Group Pan-STARRS
Previous RA, DEC: 03:03:23.045, -28:18:42.79 (45.8460225, -28.31188625)
Updated RA, DEC: 03:03:23.043, -28:18:42.77 (45.8460140379, -28.3118811931)