RA/DEC (2000)
21:04:47.995 -39:26:08.13
316.199977778 -39.4355911111
Type
SN Ia
Redshift
0.04
Discovery ReportClassification Report
Related AstroNotes: 2025-151
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-15 01:52:45.984
TNS AT
Y
Public
Y
Discovery Mag
18.358
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), 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_2025knh - 2025-05-21 07:13:23 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
   
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
21088 2025-05-21 07:13:23 ESO-NTT / EFOSC2-NTT 900 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025knh_2025-05-21_07-13-23_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025knh_2025-05-21_07-13-23_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-05-06 18:39:58 - 2025-05-23 16:38:17 2460802.27775 - 2460819.193248 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
490857 2025-05-23 16:38:17 2460819.193248 17.91 0.14 ABMag L-GOTO GOTO-S_GOTO-4 90
490856 2025-05-06 18:39:58 2460802.27775 19.8 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-05-14 07:28:41 - 2025-05-14 07:28:41 2460809.81159 - 2460809.81159 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488554 2025-05-14 07:28:41 2460809.81159 16.16 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-05-15 01:52:46 - 2025-05-15 01:52:46 2460810.57831 - 2460810.57831 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
488555 2025-05-15 01:52:46 2460810.57831 18.358 0.158 18.65 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
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
256363 2025-05-24 12:05:52 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 21:04:48.003 -39:26:08.23 2025-05-23 16:38:16.800 17.91 L-GOTO Other GOTO25cyp GOTO N
255157 2025-05-16 20:03:31 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:04:47.995 -39:26:08.13 2025-05-15 01:52:45.984 18.358 orange-ATLAS PSN ATLAS25ezh ATLAS 2025TNSTR1803....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
21088 2025-05-21 15:59:47 ePESSTOplus_Bot1 Callum Francis Aster, Stefano Pio Cosentino, Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen, Ofer Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.04 1 Add ePESSTO+ 2025TNSCR1879....1A
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
21088 2025-05-21 07:13:23 ESO-NTT / EFOSC2-NTT 900 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025knh_2025-05-21_07-13-23_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025knh_2025-05-21_07-13-23_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments