RA/DEC (2000)
20:03:58.989 -28:14:54.40
300.995786724 -28.2484447558
Type
SN Ia
Redshift
0.06
Discovery ReportClassification Report
Related AstroNotes: 2025-151
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-05-09 01:01:05.952
TNS AT
Y
Public
Y
Discovery Mag
18.92
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_2025kfd - 2025-05-21 08:00:42 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
 ▌SN_2025kfd - 2025-05-21 00:00:00 LT / SPRAT (TCD)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-N_GOTO-2_L
 ▌ATLAS-STH_ATLAS-03_orange
 ▌PS1_GPC1_w
   
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
21090 2025-05-21 08:00:42 ESO-NTT / EFOSC2-NTT 600 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025kfd_2025-05-21_08-00-42_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025kfd_2025-05-21_08-00-42_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
21099 2025-05-21 00:00:00 LT / SPRAT Charlotte-Grace Touchard-Paxton, Kate Maguire, Umut Burgaz, Christine Collins, Cillian O'Donnell, Ravi Seth, Jacobus Terwel, Tho Charlotte-Grace Touchard-Paxton TCD tns_SN_2025kfd_2025-05-21_LT_SPRAT_TCD.text Object SNID estimated phase +1.2d.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-05-06 17:19:20 - 2025-05-06 17:19:20 2460802.221762 - 2460802.221762 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491645 2025-05-06 17:19:20 2460802.221762 19.58 0.16 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-N_GOTO-2 2025-05-05 05:10:49 - 2025-05-05 05:10:49 2460800.715838 - 2460800.715838 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491644 2025-05-05 05:10:49 2460800.715838 18.2 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-05-08 01:00:23 - 2025-05-09 01:01:06 2460803.54193 - 2460804.54243 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487534 2025-05-09 01:01:06 2460804.54243 18.92 0.191 18.99 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
487533 2025-05-08 01:00:23 2460803.54193 19.02 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-06-05 13:27:43 - 2025-06-05 13:27:43 2460832.06091 - 2460832.06091 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494620 2025-06-05 13:27:43 2460832.06091 18.83 0.02 22 ABMag w-P1 PS1_GPC1 45 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
258235 2025-06-12 17:10:01 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 20:03:58.989 -28:14:54.40 2025-06-05 13:27:42.624 18.83 w-P1 PSN PS25dgp Pan-STARRS N
256807 2025-05-26 10:27:20 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 20:03:59.027 -28:14:54.64 2025-05-06 17:19:20.064 19.58 L-GOTO Other GOTO25dcs GOTO N
254620 2025-05-09 07:50:33 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 20:03:58.948 -28:14:54.57 2025-05-09 01:01:05.952 18.92 orange-ATLAS PSN ATLAS25ews ATLAS 2025TNSTR1724....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
21099 2025-05-22 12:47:58 Charlotte-Grace Touchard-Paxton Charlotte-Grace Touchard-Paxton, Kate Maguire, Umut Burgaz, Christine Collins, Cillian O'Donnell, Ravi Seth, Jacobus Terwel, Tomas Muller Bravo TCD SN Ia 0.06 1 TCD SNID classified SNIa-norm 99.9% match, estimated phase +1.2d. 2025TNSCR1907....1T
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
21099 2025-05-21 00:00:00 LT / SPRAT Charlotte-Grace Touchard-Paxton, Kate Maguire, Umut Burgaz, Christine Collins, Cillian O'Donnell, Ravi Seth, Jacobus Terwel, Tho Charlotte-Grace Touchard-Paxton TCD tns_SN_2025kfd_2025-05-21_LT_SPRAT_TCD.text Object SNID estimated phase +1.2d.
21090 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 0.05 1 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
21090 2025-05-21 08:00:42 ESO-NTT / EFOSC2-NTT 600 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025kfd_2025-05-21_08-00-42_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025kfd_2025-05-21_08-00-42_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Thu, 06/12/2025 - 17:10

Object coordinates updated

Object coordinates updated according to AT-report 258235 of Group Pan-STARRS
Previous RA, DEC: 20:03:58.948, -28:14:54.57 (300.995616, -28.248492)
Updated RA, DEC: 20:03:58.989, -28:14:54.40 (300.995786724, -28.2484447558)