RA/DEC (2000)
14:19:10.965 +30:39:18.08
214.795686 +30.655021
Type
SN Ia-CSM
Redshift
0.065767
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-16 07:45:52.128
TNS AT
Y
Public
Y
Discovery Mag
18.719
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_2025ril - 2025-08-18 00:00:00 FTN / FLOYDS-N (StarDestroyers)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-N_GOTO-1_L
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_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
21832 2025-08-18 00:00:00 FTN / FLOYDS-N 3600 Kathryn Wynn Kathryn Wynn StarDestroyers tns_AT_2025ril_2025-08-18_FTN_FLOYDS-N_StarDestroyers.txt tns_AT_2025ril_2025-08-18_FTN_FLOYDS-N_StarDestroyers.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-1 2025-07-11 21:46:35 - 2025-07-13 21:39:29 2460868.407355 - 2460870.40242 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505421 2025-07-13 21:39:29 2460870.40242 19.82 0.15 ABMag L-GOTO GOTO-N_GOTO-1 360
505420 2025-07-11 21:46:35 2460868.407355 19.5 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-07-16 07:45:52 - 2025-07-16 07:45:52 2460872.82352 - 2460872.82352 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503146 2025-07-16 07:45:52 2460872.82352 18.719 0.167 19.19 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-07-14 08:09:58 - 2025-07-14 08:09:58 2460870.84025 - 2460870.84025 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503145 2025-07-14 08:09:58 2460870.84025 18.8 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
263972 2025-07-27 09:17:48 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 14:19:10.991 +30:39:17.74 2025-07-13 21:39:29.088 19.82 L-GOTO Other GOTO25flh GOTO N
262836 2025-07-17 19:13:59 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 14:19:10.965 +30:39:18.08 2025-07-16 07:45:52.128 18.719 orange-ATLAS PSN ATLAS25hsw ATLAS 2025TNSTR2739....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
21832 2025-08-21 08:28:50 Sara Faris Sara Faris, Iair Arcavi (TAU), and Kathryn Wynn (Las Cumbres). StarDestroyers SN Ia-CSM 0.065767 1 StarDestroyers We classify this transient as an SN Ia-CSM, based on NGSF, which finds the best fit to SN Ia-CSM: 2005gj 48+76 days; 2003jd 50 days; 2017eby. 2025TNSCR3306....1F
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
21832 2025-08-18 00:00:00 FTN / FLOYDS-N 3600 Kathryn Wynn Kathryn Wynn StarDestroyers tns_AT_2025ril_2025-08-18_FTN_FLOYDS-N_StarDestroyers.txt tns_AT_2025ril_2025-08-18_FTN_FLOYDS-N_StarDestroyers.fits Object

Comments