RA/DEC (2000)
14:05:56.026 -30:31:06.13
211.483441875 -30.51837
Type
SN Ia-91T-like
Redshift
0.1
Discovery ReportClassification Report
Related AstroNotes: 2025-221
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-18 00:58:21.792
TNS AT
Y
Public
Y
Discovery Mag
18.708
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 (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_2025rjh - 2025-07-19 02:14:13 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

 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌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
21579 2025-07-19 02:14:13 ESO-NTT / EFOSC2-NTT 1200 G. Csoernyei G. Csoernyei None tns_2025rjh_2025-07-19_02-14-13.050_ESO-NTT_EFOSC2-NTT_None.asci tns_2025rjh_2025-07-19_02-14-13.050_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-07-18 00:58:22 - 2025-07-18 00:58:22 2460874.54053 - 2460874.54053 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503230 2025-07-18 00:58:22 2460874.54053 18.708 0.121 19.42 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2025-07-16 17:58:11 - 2025-07-16 17:58:11 2460873.24874 - 2460873.24874 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503229 2025-07-16 17:58:11 2460873.24874 19.51 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
262880 2025-07-18 09:09:20 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 14:05:56.026 -30:31:06.13 2025-07-18 00:58:21.792 18.708 cyan-ATLAS PSN ATLAS25hty ATLAS 2025TNSTR2748....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
21579 2025-07-19 23:45:01 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-91T-like 0.1 1 1 GELATO finds good matches with the features of the 91T-like supernova 1998es close to maximum light. Redshift measured based on host Halpha emission. 2025TNSCR2777....1C
Related files
File Comments Last Modified (UT) Modified By
tns_2025rjh_atrep_21579.png GELATO plot 2025-07-19 23:45:01 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
21579 2025-07-19 02:14:13 ESO-NTT / EFOSC2-NTT 1200 G. Csoernyei G. Csoernyei None tns_2025rjh_2025-07-19_02-14-13.050_ESO-NTT_EFOSC2-NTT_None.asci tns_2025rjh_2025-07-19_02-14-13.050_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum

Comments