RA/DEC (2000)
04:33:41.518 -13:15:54.82
68.4229918666 -13.2652282127
Type
SN Ia
Redshift
0.03246
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-08-17 18:02:44.160
TNS AT
Y
Public
Y
Discovery Mag
18.73
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_2025ugk - 2025-08-24 10:50:25 P60 / SEDM (ZTF)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
 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌PS1_GPC1_i
 ▌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
21857 2025-08-24 10:50:25 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2025ugk_2025-08-24_10-50-24.539927_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-08-17 18:02:44 - 2025-08-17 18:02:44 2460905.251903 - 2460905.251903 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
509774 2025-08-17 18:02:44 2460905.251903 18.73 0.08 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-S_GOTO-3 2025-08-12 19:12:42 - 2025-08-12 19:12:42 2460900.30049 - 2460900.30049 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
509773 2025-08-12 19:12:42 2460900.30049 19.3 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-08-16 07:49:12 - 2025-08-16 07:49:12 2460903.82583 - 2460903.82583 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510535 2025-08-16 07:49:12 2460903.82583 19.269 0.194 19.41 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 110 Robot
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-09-03 08:06:32 - 2025-09-03 08:06:32 2460921.8378704 - 2460921.8378704 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517717 2025-09-03 08:06:32 2460921.8378704 17.5 0.04 20.34 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic
BG-q-BlackGem BG2_BlackGEM-Cam2 2024-12-12 05:55:51 - 2024-12-12 05:55:51 2460656.7471181 - 2460656.7471181 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517716 2024-12-12 05:55:51 2460656.7471181 20.19 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic [Last non detection]
g-ZTF P48_ZTF-Cam 2025-08-17 11:22:07 - 2025-08-23 11:40:57 2460904.9736921 - 2460910.9867708 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
511683 2025-08-23 11:40:57 2460910.9867708 17.5567 0.0498595 ABMag g-ZTF P48_ZTF-Cam
511682 2025-08-17 11:22:07 2460904.9736921 18.6725 0.084259 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-08-07 15:03:02 - 2025-08-07 15:03:02 2460895.12711 - 2460895.12711 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510534 2025-08-07 15:03:02 2460895.12711 18.63 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
i-P1 PS1_GPC1 2025-10-03 12:41:19 - 2025-10-03 12:41:19 2460952.02869 - 2460952.02869 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522156 2025-10-03 12:41:19 2460952.02869 18.68 0.05 20.7 ABMag i-P1 PS1_GPC1 27 Robot
w-P1 PS1_GPC1 2025-09-29 13:15:24 - 2025-09-29 13:15:24 2460948.05236 - 2460948.05236 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522312 2025-09-29 13:15:24 2460948.05236 18.68 0.03 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
272525 2025-10-05 08:35:57 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 04:33:41.518 -13:15:54.82 2025-09-29 13:15:23.904 18.68 w-P1 PSN PS25hsl Pan-STARRS N
272442 2025-10-03 19:10:43 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 04:33:41.517 -13:15:54.86 2025-10-03 12:41:18.816 18.68 i-P1 PSN PS25hsl Pan-STARRS N
270318 2025-09-16 14:10:02 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 04:33:41.518 -13:15:54.91 2025-09-03 08:06:32.000 17.5 BG-q-BlackGem PSN BGEM J043341.52-131554.9 BlackGEM N
267320 2025-08-23 14:48:51 BTSbot_bot Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF ZTF ZTF 04:33:41.509 -13:15:54.74 2025-08-17 11:22:06.997 18.6725 g-ZTF PSN ZTF25abjlntp ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
266731 2025-08-20 13:12:35 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 04:33:41.485 -13:15:54.86 2025-08-16 07:49:11.712 19.269 orange-ATLAS PSN ATLAS25jwl ATLAS N
266294 2025-08-17 18:27:48 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 04:33:41.552 -13:15:54.67 2025-08-17 18:02:44.160 18.73 L-GOTO Other GOTO25fxu GOTO 2025TNSTR3243....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
21857 2025-08-24 12:21:19 ZTF_Bot1 C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.03246 1 ZTF 2025TNSCR3359....1F
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
21857 2025-08-24 10:50:25 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2025ugk_2025-08-24_10-50-24.539927_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sun, 10/05/2025 - 08:35

Object coordinates updated

Object coordinates updated according to AT-report 272525 of Group Pan-STARRS
Previous RA, DEC: 04:33:41.517, -13:15:54.86 (68.4229870331, -13.2652375218)
Updated RA, DEC: 04:33:41.518, -13:15:54.82 (68.4229918666, -13.2652282127)

TNS
System

Fri, 10/03/2025 - 19:10

Object coordinates updated

Object coordinates updated according to AT-report 272442 of Group Pan-STARRS
Previous RA, DEC: 04:33:41.509, -13:15:54.74 (68.4229559, -13.2652044)
Updated RA, DEC: 04:33:41.517, -13:15:54.86 (68.4229870331, -13.2652375218)

TNS
System

Sat, 08/23/2025 - 14:48

Object coordinates updated

Object coordinates updated according to AT-report 267320 of Group ZTF
Previous RA, DEC: 04:33:41.485, -13:15:54.86 (68.4228533333, -13.26524)
Updated RA, DEC: 04:33:41.509, -13:15:54.74 (68.4229559, -13.2652044)

TNS
System

Wed, 08/20/2025 - 13:12

Object coordinates updated

Object coordinates updated according to AT-report 266731 of Group ATLAS
Previous RA, DEC: 04:33:41.552, -13:15:54.67 (68.423132, -13.265186)
Updated RA, DEC: 04:33:41.485, -13:15:54.86 (68.4228533333, -13.26524)