RA/DEC (2000)
02:56:44.583 -35:30:30.04
44.1857622222 -35.5083444444
Type
SN Ia
Redshift
0.05604
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-06-02 03:55:15.168
TNS AT
Y
Public
Y
Discovery Mag
18.848
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_2025myb - 2025-06-29 19:12:00 ANU-2.3m / WiFeS (DEBASS)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-S_GOTO-3_L
 ▌ATLAS-STH_ATLAS-03_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
21433 2025-06-29 19:12:00 ANU-2.3m / WiFeS 1200 Robotic B. Martin DEBASS tns_2025myb_2025-06-29.8_ANU-2.3m_WiFeS_DEBASS.dat tns_2025myb_2025-06-29.8_ANU-2.3m_WiFeS_DEBASS.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-06-13 19:33:05 - 2025-06-13 19:33:05 2460840.314637 - 2460840.314637 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496033 2025-06-13 19:33:05 2460840.314637 18.03 0.18 ABMag L-GOTO GOTO-S_GOTO-4 135
L-GOTO GOTO-S_GOTO-3 2025-03-17 09:18:53 - 2025-03-17 09:18:53 2460751.888115 - 2460751.888115 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496032 2025-03-17 09:18:53 2460751.888115 17.6 ABMag L-GOTO GOTO-S_GOTO-3 135 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-05-24 04:28:33 - 2025-06-02 03:55:15 2460819.68649 - 2460828.66337 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493774 2025-06-02 03:55:15 2460828.66337 18.848 0.173 18.99 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
493773 2025-05-24 04:28:33 2460819.68649 17.35 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 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
258992 2025-06-18 07:24:15 GOTO_bot A. Kumar, G. Ramsay, K. Ackley et al. GOTO GOTO 02:56:44.557 -35:30:30.12 2025-06-13 19:33:04.896 18.03 L-GOTO Other GOTO25dof GOTO N
257831 2025-06-05 12:18:32 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 02:56:44.583 -35:30:30.04 2025-06-02 03:55:15.168 18.848 orange-ATLAS PSN ATLAS25fxj ATLAS 2025TNSTR2102....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
21433 2025-06-30 04:49:37 Bailey Martin B. Martin (ANU), C. Lidman (ANU), D. Brout (Boston University), K. Auchettl (University of Melbourne/UCSC), P. Armstrong (ANU), D. Cao (ANU), and L. Rauf (ANU) DEBASS SN Ia 0.05604 1 1 DEBASS Classified with superfit. The best fitting spectrum is SN1981B, a Type Ia. 2025TNSCR2499....1M
Related files
File Comments Last Modified (UT) Modified By
tns_2025myb_atrep_21433_DEBASS.pdf The best fitting spectrum from superfit. 2025-06-30 04:49:37 Bailey Martin
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
21433 2025-06-29 19:12:00 ANU-2.3m / WiFeS 1200 Robotic B. Martin DEBASS tns_2025myb_2025-06-29.8_ANU-2.3m_WiFeS_DEBASS.dat tns_2025myb_2025-06-29.8_ANU-2.3m_WiFeS_DEBASS.fits Object

Comments