RA/DEC (2000)
10:17:02.311 -38:16:18.98
154.25963 -38.27194
Type
SN Ia-91T-like
Redshift
0.016672
Discovery ReportClassification Report
Related AstroNotes: 2025-126
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-04-24 02:30:34.848
TNS AT
Y
Public
Y
Discovery Mag
17.513
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_2025ifq - 2025-04-25 10:53:48 FTS / FLOYDS-S (Global SN Project)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
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▌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-3_L
 ▌ATLAS-CHL_ATLAS-04_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
20903 2025-04-25 10:53:48 FTS / FLOYDS-S 2700 LCO Moira Andrews Global SN Project tns_2025ifq_2025-04-25_10-53-48_FTS_FLOYDS-S_Global_SN_Project.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-04-16 09:43:06 - 2025-05-08 08:46:52 2460781.904933 - 2460803.865878 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488071 2025-05-08 08:46:52 2460803.865878 16.13 0.01 ABMag L-GOTO GOTO-S_GOTO-3 180
488070 2025-04-16 09:43:06 2460781.904933 19.6 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-04-20 04:31:45 - 2025-04-24 02:30:35 2460785.68872 - 2460789.60457 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
483803 2025-04-24 02:30:35 2460789.60457 17.513 0.052 19.25 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
483802 2025-04-20 04:31:45 2460785.68872 18.01 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 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
254932 2025-05-13 10:12:26 GOTO_bot G. Ramsay, K. Ackley, M. Dyer et al. GOTO GOTO 10:17:02.302 -38:16:19.06 2025-05-08 08:46:52.032 16.13 L-GOTO Other GOTO24jvr GOTO This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Virgilio Gonano, Antonio Pasqua, Svetoslav Alexandrov, M.T. Mazzucato, Mayahuel Torres Guerrero N
252473 2025-04-24 06:42:31 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 10:17:02.311 -38:16:18.98 2025-04-24 02:30:34.848 17.513 orange-ATLAS PSN ATLAS25eca ATLAS 2025TNSTR1517....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
20903 2025-04-25 20:26:27 Moira Andrews Moira Andrews (UCSB/LCO), Joseph Farah, Chris Ni, Kathryn Wynn, D. Andrew Howell, Curtis McCully Global SN Project SN Ia-91T-like 0.016672 1 Global SN Project We report the classification of SN 2025ifq as SN Ia 91T-like. Spectrum resembles an overluminous Type Ia like 91T-like well before peak. The object redshift is acquired from the nearby host WISEA J101702.77-381623.3 (z = 0.016672, d = 78.27 Mpc, values from NED). Additional follow-up is encouraged. 2025TNSCR1539....1A
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
20903 2025-04-25 10:53:48 FTS / FLOYDS-S 2700 LCO Moira Andrews Global SN Project tns_2025ifq_2025-04-25_10-53-48_FTS_FLOYDS-S_Global_SN_Project.ascii Object

Comments

TNS
System

Tue, 05/13/2025 - 11:42

AT Report/s were associated with object

GOTO AT report/s 254932 for 2025kjs were associated with object SN2025ifq.
Object 2025kjs was removed from the system.