RA/DEC (2000)
03:43:55.887 -20:31:46.83
55.9828624826 -20.5296759484
Type
SN Ia
Redshift
0.0405
Discovery ReportClassification Report
Related AstroNotes: 2025-215
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-06 09:28:59.232
TNS AT
Y
Public
Y
Discovery Mag
18.027
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_2025qoy - 2025-07-16 09:22:23 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-3_L
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_orange
 ▌P48_ZTF-Cam_r
 ▌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
21543 2025-07-16 09:22:23 ESO-NTT / EFOSC2-NTT 600 J. Quirola-Vasquez, J. Sanchez-Sierras U. Burgaz, J.H. Terwel ePESSTO+ tns_2025qoy_2025-07-16_09-22-23_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025qoy_2025-07-16_09-22-23_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-07-08 19:13:51 - 2025-07-08 19:13:51 2460865.301291 - 2460865.301291 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501538 2025-07-08 19:13:51 2460865.301291 17.67 0.06 ABMag L-GOTO GOTO-S_GOTO-3 180
L-GOTO GOTO-N_GOTO-2 2025-01-27 21:29:24 - 2025-01-27 21:29:24 2460703.39542 - 2460703.39542 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501537 2025-01-27 21:29:24 2460703.39542 19.6 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-07-06 09:28:59 - 2025-07-06 09:28:59 2460862.89513 - 2460862.89513 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501395 2025-07-06 09:28:59 2460862.89513 18.027 0.116 18.71 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2025-06-14 04:31:32 - 2025-06-14 04:31:32 2460840.68856 - 2460840.68856 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501394 2025-06-14 04:31:32 2460840.68856 17.94 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-08-25 10:55:22 - 2025-08-29 10:10:12 2460912.9551157 - 2460916.92375 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513787 2025-08-29 10:10:12 2460916.92375 18.9625 0.129251 ABMag r-ZTF P48_ZTF-Cam
513786 2025-08-25 10:55:22 2460912.9551157 18.7831 0.106945 ABMag r-ZTF P48_ZTF-Cam
w-P1 PS1_GPC1 2025-09-14 13:54:43 - 2025-09-14 13:54:43 2460933.07966 - 2460933.07966 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518580 2025-09-14 13:54:43 2460933.07966 19.54 0.04 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
270704 2025-09-20 00:54:24 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 03:43:55.887 -20:31:46.83 2025-09-14 13:54:42.624 19.54 w-P1 PSN PS25hom Pan-STARRS N
268400 2025-08-29 11:01:00 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 03:43:55.882 -20:31:46.82 2025-08-25 10:55:21.996 18.7831 r-ZTF PSN ZTF25ablupqx ZTF N
261894 2025-07-09 09:30:46 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 03:43:55.865 -20:31:47.20 2025-07-08 19:13:51.456 17.67 L-GOTO Other GOTO25erl GOTO N
261822 2025-07-07 19:11:06 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 03:43:55.871 -20:31:46.73 2025-07-06 09:28:59.232 18.027 orange-ATLAS PSN ATLAS25hbp ATLAS 2025TNSTR2590....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
21543 2025-07-17 07:33:51 ePESSTOplus_Bot1 J. Quirola-Vasquez, J. Sanchez-Sierras, U. Burgaz, J.H. Terwel, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN Ia 0.0405 1 ePESSTO+ 2025TNSCR2747....1Q
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
21543 2025-07-16 09:22:23 ESO-NTT / EFOSC2-NTT 600 J. Quirola-Vasquez, J. Sanchez-Sierras U. Burgaz, J.H. Terwel ePESSTO+ tns_2025qoy_2025-07-16_09-22-23_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025qoy_2025-07-16_09-22-23_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Sat, 09/20/2025 - 00:54

Object coordinates updated

Object coordinates updated according to AT-report 270704 of Group Pan-STARRS
Previous RA, DEC: 03:43:55.882, -20:31:46.82 (55.9828409, -20.5296728)
Updated RA, DEC: 03:43:55.887, -20:31:46.83 (55.9828624826, -20.5296759484)

TNS
System

Fri, 08/29/2025 - 11:01

Object coordinates updated

Object coordinates updated according to AT-report 268400 of Group ZTF
Previous RA, DEC: 03:43:55.871, -20:31:46.73 (55.9827969231, -20.5296469231)
Updated RA, DEC: 03:43:55.882, -20:31:46.82 (55.9828409, -20.5296728)