RA/DEC (2000)
01:58:15.354 -76:54:51.28
29.563976 -76.914244
Type
SN Ia
Redshift
0.05
Discovery ReportClassification Report
Related AstroNotes: 2025-220
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-08 08:21:06.336
TNS AT
Y
Public
Y
Discovery Mag
18.286
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_2025qtf - 2025-07-18 07:48:48 ESO-NTT / EFOSC2-NTT (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
 ▌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
21572 2025-07-18 07:48:48 ESO-NTT / EFOSC2-NTT 900 G. Csoernyei G. Csoernyei None tns_2025qtf_2025-07-18_07-48-48.038_ESO-NTT_EFOSC2-NTT_None.asci tns_2025qtf_2025-07-18_07-48-48.038_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-06-20 18:58:36 - 2025-06-20 18:58:36 2460847.290687 - 2460847.290687 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
502188 2025-06-20 18:58:36 2460847.290687 19.9 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-07-08 17:46:22 - 2025-07-08 17:46:22 2460865.240534 - 2460865.240534 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
502189 2025-07-08 17:46:22 2460865.240534 18.24 0.1 ABMag L-GOTO GOTO-S_GOTO-3 180
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-07-04 08:58:57 - 2025-07-08 08:21:06 2460860.87427 - 2460864.84799 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501837 2025-07-08 08:21:06 2460864.84799 18.286 0.173 18.68 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
501836 2025-07-04 08:58:57 2460860.87427 19.08 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
262318 2025-07-12 19:05:06 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 01:58:15.306 -76:54:51.45 2025-07-08 17:46:21.792 18.24 L-GOTO Other GOTO25esq GOTO N
262066 2025-07-10 21:11:17 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 01:58:15.354 -76:54:51.28 2025-07-08 08:21:06.336 18.286 orange-ATLAS PSN ATLAS25hee ATLAS 2025TNSTR2637....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
21572 2025-07-19 21:26:47 Geza Csornyei G. Csoernyei, M. Vioque, M. Mirabile (ESO), G. Fernandes Goncalves (Federal University of Technology), L. Hauer (University of Vienna), P. M. Lequizamon Pineda (Università degli Studi di Padova), A. Moore (University College Cork), E. Nilson (Lund University), A. Pisapia (INAF-OAS), J. Willingham (Macquarie University) None SN Ia 0.05 1 1 GELATO finds good matches between normal and 91T-like SNe a few days before maximum. Redshift from template matching. 2025TNSCR2777....1C
Related files
File Comments Last Modified (UT) Modified By
tns_2025qtf_atrep_21572.png GELATO comparison plot 2025-07-19 21:26:47 Geza Csornyei
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
21572 2025-07-18 07:48:48 ESO-NTT / EFOSC2-NTT 900 G. Csoernyei G. Csoernyei None tns_2025qtf_2025-07-18_07-48-48.038_ESO-NTT_EFOSC2-NTT_None.asci tns_2025qtf_2025-07-18_07-48-48.038_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum

Comments