RA/DEC (2000)
01:42:15.869 -02:13:40.47
25.5661205722 -2.22790924737
Type
SN Ia
Redshift
0.041122
Discovery ReportClassification Report
Related AstroNotes: 2025-269
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-08-25 03:53:58.272
TNS AT
Y
Public
Y
Discovery Mag
19.19
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_2025vkp - 2025-08-28 04:37:08 NOT / ALFOSC (GOTO)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
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_g
 ▌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
21896 2025-08-28 04:37:08 NOT / ALFOSC M. Pursiainen, I. Worssam M. Pursiainen, I. Worssam GOTO tns_2025vkp_2025-08-28_04-37-07.760_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-08-29 02:05:36 - 2025-08-29 02:05:36 2460916.58722 - 2460916.58722 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514781 2025-08-29 02:05:36 2460916.58722 20.05 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-08-30 00:19:32 - 2025-08-30 00:19:32 2460917.51356 - 2460917.51356 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514782 2025-08-30 00:19:32 2460917.51356 17.988 0.063 19.69 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-08-24 03:49:36 - 2025-08-25 03:53:58 2460911.659444 - 2460912.662482 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512306 2025-08-25 03:53:58 2460912.662482 19.19 0.14 ABMag L-GOTO GOTO-N_GOTO-1 180
512305 2025-08-24 03:49:36 2460911.659444 19.6 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2025-08-24 09:06:37 - 2025-09-14 09:27:04 2460911.8795949 - 2460932.8937963 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516947 2025-09-14 09:27:04 2460932.8937963 17.5529 0.046904 ABMag g-ZTF P48_ZTF-Cam
516946 2025-08-25 09:47:48 2460912.9081944 19.1624 0.104716 ABMag g-ZTF P48_ZTF-Cam
516945 2025-08-24 09:06:37 2460911.8795949 20.4424 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
w-P1 PS1_GPC1 2025-08-28 12:35:08 - 2025-08-28 12:35:08 2460916.0244 - 2460916.0244 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514913 2025-08-28 12:35:08 2460916.0244 18.07 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
269943 2025-09-14 12:51:58 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 01:42:15.860 -02:13:40.33 2025-08-25 09:47:47.996 19.1624 g-ZTF PSN ZTF25abltawp ZTF N
268940 2025-09-01 16:20:39 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 01:42:15.869 -02:13:40.47 2025-08-28 12:35:08.160 18.07 w-P1 PSN PS25hhi Pan-STARRS N
268876 2025-09-01 09:17:33 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 01:42:15.872 -02:13:40.42 2025-08-30 00:19:31.584 17.988 cyan-ATLAS PSN ATLAS25kvi ATLAS N
267653 2025-08-25 20:27:46 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 01:42:15.874 -02:13:40.24 2025-08-25 03:53:58.272 19.19 L-GOTO Other GOTO25giw GOTO 2025TNSTR3364....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
21896 2025-08-28 10:02:40 Joe Lyman I. Worssam, M. Pursiainen, D. O'Neill, J. Lyman, T. Killestein, K. Ackley, M. Dyer, 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, A. Kumar on behalf of GOTO collaboration GOTO SN Ia 0.041122 1 GOTO Mathes to SN Ia just before peak light. Redshift from host. 2025TNSCR3426....1W
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
21896 2025-08-28 04:37:08 NOT / ALFOSC M. Pursiainen, I. Worssam M. Pursiainen, I. Worssam GOTO tns_2025vkp_2025-08-28_04-37-07.760_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Mon, 09/01/2025 - 16:20

Object coordinates updated

Object coordinates updated according to AT-report 268940 of Group Pan-STARRS
Previous RA, DEC: 01:42:15.872, -02:13:40.42 (25.5661337037, -2.22789555556)
Updated RA, DEC: 01:42:15.869, -02:13:40.47 (25.5661205722, -2.22790924737)

TNS
System

Mon, 09/01/2025 - 09:17

Object coordinates updated

Object coordinates updated according to AT-report 268876 of Group ATLAS
Previous RA, DEC: 01:42:15.874, -02:13:40.24 (25.566143, -2.227844)
Updated RA, DEC: 01:42:15.872, -02:13:40.42 (25.5661337037, -2.22789555556)