RA/DEC (2000)
16:19:47.874 +09:08:59.91
244.949474934 +9.14997378011
Type
SN Ia
Redshift
0.12
Discovery ReportClassification Report
Related AstroNotes: 2025-220
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-07-07 22:08:05.856
TNS AT
Y
Public
Y
Discovery Mag
19.06
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_2025rbu - 2025-07-18 04:40:28 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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-N_GOTO-1_L
 ▌ATLAS-MLO_ATLAS-01_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
21570 2025-07-18 04:40:28 ESO-NTT / EFOSC2-NTT 1200 G. Csoernyei G. Csoernyei None tns_2025rbu_2025-07-18_04-40-27.662_ESO-NTT_EFOSC2-NTT_None.asci tns_2025rbu_2025-07-18_04-40-27.662_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-07-12 23:55:54 - 2025-07-12 23:55:54 2460869.49715 - 2460869.49715 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
502897 2025-07-12 23:55:54 2460869.49715 18.96 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-07-03 22:10:51 - 2025-07-07 22:08:06 2460860.424197 - 2460864.422292 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
502446 2025-07-07 22:08:06 2460864.422292 19.06 0.21 ABMag L-GOTO GOTO-N_GOTO-1 180
502445 2025-07-03 22:10:51 2460860.424197 19.2 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-07-14 09:15:07 - 2025-07-14 09:15:07 2460870.8855 - 2460870.8855 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
502898 2025-07-14 09:15:07 2460870.8855 19.026 0.17 19.27 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
w-P1 PS1_GPC1 2025-07-26 07:20:49 - 2025-07-26 07:20:49 2460882.80612 - 2460882.80612 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546436 2025-07-26 07:20:49 2460882.80612 19.65 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
285151 2025-12-31 15:27:12 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 16:19:47.874 +09:08:59.91 2025-07-26 07:20:48.768 19.65 w-P1 PSN PS25lyq Pan-STARRS N
262704 2025-07-16 14:09:36 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:19:47.861 +09:08:59.94 2025-07-14 09:15:07.200 19.026 orange-ATLAS PSN ATLAS25hrf ATLAS N
262450 2025-07-14 12:43:22 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 16:19:47.857 +09:08:59.80 2025-07-07 22:08:05.856 19.06 L-GOTO Other GOTO25evm GOTO 2025TNSTR2688....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
21570 2025-07-19 21:21:46 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 0.12 1 GELATO finds good matches with literature spectra close to or at maximum light. The redshift is estimated based on template matching. 2025TNSCR2777....1C
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
21570 2025-07-18 04:40:28 ESO-NTT / EFOSC2-NTT 1200 G. Csoernyei G. Csoernyei None tns_2025rbu_2025-07-18_04-40-27.662_ESO-NTT_EFOSC2-NTT_None.asci tns_2025rbu_2025-07-18_04-40-27.662_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum

Comments

TNS
System

Wed, 12/31/2025 - 15:27

Object coordinates updated

Object coordinates updated according to AT-report 285151 of Group Pan-STARRS
Previous RA, DEC: 16:19:47.861, +09:08:59.94 (244.94942, +9.14998333333)
Updated RA, DEC: 16:19:47.874, +09:08:59.91 (244.949474934, +9.14997378011)

TNS
System

Wed, 07/16/2025 - 14:09

Object coordinates updated

Object coordinates updated according to AT-report 262704 of Group ATLAS
Previous RA, DEC: 16:19:47.857, +09:08:59.80 (244.949404, +9.149944)
Updated RA, DEC: 16:19:47.861, +09:08:59.94 (244.94942, +9.14998333333)