RA/DEC (2000)
03:44:52.101 -59:08:19.74
56.2170855556 -59.1388166667
Type
SN Ib
Redshift
0.01841
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-11-19 04:49:22.944
TNS AT
Y
Public
Y
Discovery Mag
18.674
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), M. R. Alarcón, J. Licandro, P. Nichita (IAC), 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, P. J. Broda (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_2025aegk - 2025-11-29 11:53:17 ANU-2.3m / WiFeS (Supernova Alliance)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-CHL_ATLAS-04_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
22470 2025-11-29 11:53:17 ANU-2.3m / WiFeS 1800 B. Schmidt C. Lidman Supernova Alliance tns_2025aegk_2025-11-29_11-53-17_ANU-2.3m_WiFeS_Supernova_Alliance.dat Object Significant host galaxy light in spectrum.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-11-11 13:56:52 - 2025-11-11 13:56:52 2460991.081158 - 2460991.081158 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
540173 2025-11-11 13:56:52 2460991.081158 20 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-12-04 13:47:27 - 2025-12-04 13:47:27 2461014.074618 - 2461014.074618 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
540174 2025-12-04 13:47:27 2461014.074618 17.18 0.03 ABMag L-GOTO GOTO-S_GOTO-3 180
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-11-18 05:50:01 - 2025-11-19 04:49:23 2460997.74307 - 2460998.70096 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
532732 2025-11-19 04:49:23 2460998.70096 18.674 0.201 19.29 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
532731 2025-11-18 05:50:01 2460997.74307 18.97 ABMag cyan-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
281191 2025-12-18 10:42:44 GOTO_bot G. Ramsay,D. O'Neill,K. Ackley et al. GOTO GOTO 03:44:52.124 -59:08:19.05 2025-12-04 13:47:27.168 17.18 L-GOTO Other GOTO25lpl GOTO N
277750 2025-11-21 09:12:05 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 03:44:52.101 -59:08:19.74 2025-11-19 04:49:22.944 18.674 cyan-ATLAS PSN ATLAS25opg ATLAS 2025TNSTR4667....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
22469 2025-11-30 02:30:51 Brian Schmidt B. Schmidt (ANU), K. Auchettl (University of Melbourne/UCSC), C. Lidman (ANU), B. Martin (ANU), Anais Moller (Swinburne), L. Rauf (ANU), Sara Romagnoli (University of Melbourne), Jennifer Shi (University of Melbourne), and B. E. Tucker (ANU) Supernova Alliance SN Ib 0.01841 1 Supernova Alliance Classified as Ib near max with superfit/snid-sage. 2025TNSCR4776....1S
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
22470 2025-11-29 11:53:17 ANU-2.3m / WiFeS 1800 B. Schmidt C. Lidman Supernova Alliance tns_2025aegk_2025-11-29_11-53-17_ANU-2.3m_WiFeS_Supernova_Alliance.dat Object Significant host galaxy light in spectrum.

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