RA/DEC (2000)
06:44:33.936 -36:56:35.02
101.1414 -36.94306
Type
SN Ia
Redshift
0.03
Discovery ReportClassification Report
Related AstroNotes: 2025-268
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-08-11 04:07:41.664
TNS AT
Y
Public
Y
Discovery Mag
17.992
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), 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 (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_2025tml - 2025-08-26 08:03:52 ESO-NTT / EFOSC2-NTT (ePESSTO+)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-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_orange
 ▌CTIO-4m_DECAM_i
   
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
21867 2025-08-26 08:03:52 ESO-NTT / EFOSC2-NTT 300 C. Gutierrez, R. Sanfeliu, H.-Y. Miao C. Gutierrez ePESSTO+ tns_2025tml_2025-08-26_08-03-52_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025tml_2025-08-26_08-03-52_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-08-04 19:24:26 - 2025-08-24 18:23:46 2460892.308635 - 2460912.266496 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512110 2025-08-24 18:23:46 2460912.266496 17.05 0.02 ABMag L-GOTO GOTO-S_GOTO-4 360
512109 2025-08-04 19:24:26 2460892.308635 19.7 ABMag L-GOTO GOTO-S_GOTO-4 360 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-08-07 10:06:01 - 2025-08-07 10:06:01 2460894.92084 - 2460894.92084 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508038 2025-08-07 10:06:01 2460894.92084 18.62 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-08-11 04:07:42 - 2025-08-11 04:07:42 2460898.67201 - 2460898.67201 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508039 2025-08-11 04:07:42 2460898.67201 17.992 0.075 19.26 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 110 Robot
i-Sloan CTIO-4m_DECAM 2025-08-29 09:50:45 - 2025-08-29 09:50:45 2460916.9102392 - 2460916.9102392 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516570 2025-08-29 09:50:45 2460916.9102392 17.8706 0.00401679 ABMag i-Sloan CTIO-4m_DECAM
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
269775 2025-09-12 02:15:39 GW-MMADS_bot Xander J. Hall (CMU),Tomás Cabrera (CMU),Lei Hu (CMU) et al. GW-MMADS GW-MMADS 06:44:33.956 -36:56:35.40 2025-08-29 09:50:44.736 17.8706 i-Sloan PSN T202508290644340m365635 GW-MMADS N
267561 2025-08-24 21:27:55 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 06:44:33.960 -36:56:35.43 2025-08-24 18:23:45.600 17.05 L-GOTO Other GOTO25ghh GOTO N
265386 2025-08-11 14:43:16 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 06:44:33.936 -36:56:35.02 2025-08-11 04:07:41.664 17.992 orange-ATLAS PSN ATLAS25jgc ATLAS 2025TNSTR3142....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
21867 2025-08-26 19:17:04 ePESSTOplus_Bot1 C. Gutierrez, R. Sanfeliu, H.-Y. Miao, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.03 1 ePESSTO+ 2025TNSCR3382....1G
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
21867 2025-08-26 08:03:52 ESO-NTT / EFOSC2-NTT 300 C. Gutierrez, R. Sanfeliu, H.-Y. Miao C. Gutierrez ePESSTO+ tns_2025tml_2025-08-26_08-03-52_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025tml_2025-08-26_08-03-52_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments