RA/DEC (2000)
20:39:11.639 -42:30:23.41
309.798496674 -42.5065039024
Type
SN Ia
Redshift
0.09
Discovery ReportClassification Report
Related AstroNotes: 2025-220
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-07-13 11:53:51.936
TNS AT
Y
Public
Y
Discovery Mag
18.46
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025rga - 2025-07-18 05:44:38 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

 ▌GOTO-S_GOTO-4_L
 ▌ATLAS-CHL_ATLAS-04_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
21569 2025-07-18 05:44:38 ESO-NTT / EFOSC2-NTT 900 G. Csoernyei G. Csoernyei None tns_2025rga_2025-07-18_05-44-37.822_ESO-NTT_EFOSC2-NTT_None.asci tns_2025rga_2025-07-18_05-44-37.822_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-07-08 15:52:53 - 2025-07-13 11:53:52 2460865.161734 - 2460869.995739 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
502883 2025-07-13 11:53:52 2460869.995739 18.46 0.2 ABMag L-GOTO GOTO-S_GOTO-4 180
502882 2025-07-08 15:52:53 2460865.161734 19.1 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-07-09 04:51:41 - 2025-07-16 06:42:29 2460865.70256 - 2460872.7795 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503128 2025-07-16 06:42:29 2460872.7795 18.513 0.165 18.8 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
503127 2025-07-09 04:51:41 2460865.70256 18.41 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-07-26 09:48:55 - 2025-07-26 09:48:55 2460882.90897 - 2460882.90897 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
545404 2025-07-26 09:48:55 2460882.90897 19.28 0.07 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
284159 2025-12-30 20:40:28 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 20:39:11.639 -42:30:23.41 2025-07-26 09:48:55.008 19.28 w-P1 PSN PS25kpp Pan-STARRS N
262827 2025-07-17 18:20:20 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 20:39:11.609 -42:30:22.82 2025-07-16 06:42:28.800 18.513 orange-ATLAS PSN ATLAS25hso ATLAS N
262696 2025-07-16 11:51:24 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 20:39:11.617 -42:30:24.02 2025-07-13 11:53:51.936 18.46 L-GOTO Other GOTO25eww GOTO 2025TNSTR2724....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21569 2025-07-19 18:32:05 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 0.09 1 1 GELATO (Harutyunyan et al. 2008, 2008A&A...488..383H) finds excellent matches with 2002bo at epochs 3 to 5 days before maximum. Redshift estimated based on template matching. 2025TNSCR2777....1C
Related files
File Comments Last Modified (UT) Modified By
tns_2025rga_atrep_21569.png 2025-07-19 18:32:05 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
21569 2025-07-18 05:44:38 ESO-NTT / EFOSC2-NTT 900 G. Csoernyei G. Csoernyei None tns_2025rga_2025-07-18_05-44-37.822_ESO-NTT_EFOSC2-NTT_None.asci tns_2025rga_2025-07-18_05-44-37.822_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum

Comments

TNS
System

Tue, 12/30/2025 - 20:40

Object coordinates updated

Object coordinates updated according to AT-report 284159 of Group Pan-STARRS
Previous RA, DEC: 20:39:11.609, -42:30:22.82 (309.79837, -42.50634)
Updated RA, DEC: 20:39:11.639, -42:30:23.41 (309.798496674, -42.5065039024)

TNS
System

Thu, 07/17/2025 - 18:20

Object coordinates updated

Object coordinates updated according to AT-report 262827 of Group ATLAS
Previous RA, DEC: 20:39:11.617, -42:30:24.02 (309.798405, -42.506672)
Updated RA, DEC: 20:39:11.609, -42:30:22.82 (309.79837, -42.50634)