RA/DEC (2000)
04:50:13.279 +08:08:02.73
72.5553299746 +8.13409269123
Type
SN Ia
Redshift
0.032
Related AstroNotes: 2025-277
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-08-31 05:12:59.040
TNS AT
Y
Public
Y
Discovery Mag
18.79
Filter
L-GOTO
Reporter/s
G. Ramsay, M. Pursiainen, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, D. O'Neill, on behalf of GOTO collaboration

Spectra

 SN_2025wnt - 2025-09-01 05:25:41 NOT / ALFOSC (GOTO)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 PS2_GPC2_w
 ATLAS-STH_ATLAS-03_cyan
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 ATLAS-HKO_ATLAS-02_orange
   
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
21939 2025-09-01 05:25:41 NOT / ALFOSC I. Worssam, M. Pursiainen I. Worssam, M. Pursiainen GOTO tns_2025wnt_2025-09-01_05-25-41.331_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2025-09-18 12:45:05 - 2025-09-18 12:45:05 2460937.03131 - 2460937.03131 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
545439 2025-09-18 12:45:05 2460937.03131 17.3 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-08-30 03:03:19 - 2025-08-30 03:03:19 2460917.6273 - 2460917.6273 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514949 2025-08-30 03:03:19 2460917.6273 18.761 0.117 19.6 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-08-30 05:23:48 - 2025-08-31 05:12:59 2460917.724858 - 2460918.717351 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514701 2025-08-31 05:12:59 2460918.717351 18.79 0.2 ABMag L-GOTO GOTO-N_GOTO-1 180
514700 2025-08-30 05:23:48 2460917.724858 19.4 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-02 10:46:00 - 2025-09-02 10:46:00 2460920.9486111 - 2460920.9486111 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
515177 2025-09-02 10:46:00 2460920.9486111 18.0971 0.0746917 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-08-31 11:52:44 - 2025-08-31 11:52:44 2460918.9949537 - 2460918.9949537 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
515176 2025-08-31 11:52:44 2460918.9949537 20.4771 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-08-25 14:17:43 - 2025-08-25 14:17:43 2460913.09564 - 2460913.09564 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514948 2025-08-25 14:17:43 2460913.09564 19.92 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 110 Robot [Last non detection]
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
284194 2025-12-30 20:53:23 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 04:50:13.279 +08:08:02.73 2025-09-18 12:45:05.184 17.3 w-P1 PSN PS25kqy Pan-STARRS N
269101 2025-09-02 13:54:28 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 04:50:13.273 +08:08:02.71 2025-09-02 10:45:59.999 18.0971 r-ZTF PSN ZTF25abogfap ZTF N
268957 2025-09-01 20:28:26 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 04:50:13.263 +08:08:02.54 2025-08-30 03:03:18.720 18.761 cyan-ATLAS PSN ATLAS25kwn ATLAS N
268836 2025-09-01 05:21:44 GOTO_bot G. Ramsay, M. Pursiainen, K. Ackley et al. GOTO GOTO 04:50:13.272 +08:08:02.09 2025-08-31 05:12:59.040 18.79 L-GOTO Other GOTO25gqp GOTO 2025TNSTR3495....1R N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21939 2025-09-01 09:20:01 David O'Neill I. Worssam, M. Pursiainen, T. Killestein, J. Lyman, D. O'Neill, 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 0.032 1 GOTO Classified using template matching with SNID-SAGE. Consistent with a type Ia around 1 week pre-peak. Redshift from narrow lines. 2025TNSCR3504....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
21939 2025-09-01 05:25:41 NOT / ALFOSC I. Worssam, M. Pursiainen I. Worssam, M. Pursiainen GOTO tns_2025wnt_2025-09-01_05-25-41.331_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 284194 of Group Pan-STARRS
Previous RA, DEC: 04:50:13.273, +08:08:02.71 (72.5553045, +8.1340864)
Updated RA, DEC: 04:50:13.279, +08:08:02.73 (72.5553299746, +8.13409269123)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 269101 of Group ZTF
Previous RA, DEC: 04:50:13.263, +08:08:02.54 (72.5552628571, +8.13403857143)
Updated RA, DEC: 04:50:13.273, +08:08:02.71 (72.5553045, +8.1340864)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 268957 of Group ATLAS
Previous RA, DEC: 04:50:13.272, +08:08:02.09 (72.555302, +8.133915)
Updated RA, DEC: 04:50:13.263, +08:08:02.54 (72.5552628571, +8.13403857143)