RA/DEC (2000)
23:34:04.147 +01:34:45.55
353.517280692 +1.57931930093
Type
SN Ic
Redshift
0.044231
Discovery ReportClassification Report
Related AstroNotes: 2025-263
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-07-20 03:49:21.792
TNS AT
Y
Public
Y
Discovery Mag
19.42
Filter
L-GOTO
Reporter/s
A. Kumar, 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, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025rop - 2025-07-27 11:17:51 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-N_GOTO-2_L
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_r
 ▌ATLAS-HKO_ATLAS-02_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
21764 2025-07-27 11:17:51 P60 / SEDM 2700 SEDmRobot ZTF tns_2025rop_2025-07-27_11-17-51.353251_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-07-19 03:48:32 - 2025-07-19 03:48:32 2460875.658701 - 2460875.658701 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503656 2025-07-19 03:48:32 2460875.658701 18.4 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-07-21 03:35:14 - 2025-07-21 03:35:14 2460877.64947 - 2460877.64947 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
504059 2025-07-21 03:35:14 2460877.64947 19.011 0.195 19.19 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-07-20 03:49:22 - 2025-07-20 03:49:22 2460876.659284 - 2460876.659284 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503657 2025-07-20 03:49:22 2460876.659284 19.42 0.15 ABMag L-GOTO GOTO-N_GOTO-1 180
i-ZTF P48_ZTF-Cam 2025-07-19 07:42:58 - 2025-07-19 07:42:58 2460875.8215046 - 2460875.8215046 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503988 2025-07-19 07:42:58 2460875.8215046 19.1656 ABMag i-ZTF P48_ZTF-Cam [Last non detection]
r-ZTF P48_ZTF-Cam 2025-07-19 08:41:22 - 2025-07-21 08:24:35 2460875.8620602 - 2460877.8504051 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503990 2025-07-21 08:24:35 2460877.8504051 19.538 0.117578 ABMag r-ZTF P48_ZTF-Cam
503989 2025-07-19 08:41:22 2460875.8620602 19.7577 0.122197 ABMag r-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-07-20 14:46:27 - 2025-07-20 14:46:27 2460877.11559 - 2460877.11559 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
504058 2025-07-20 14:46:27 2460877.11559 19.39 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-08-03 11:46:18 - 2025-08-03 11:46:18 2460890.99049 - 2460890.99049 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507864 2025-08-03 11:46:18 2460890.99049 19.45 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
265275 2025-08-08 23:34:52 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 23:34:04.147 +01:34:45.55 2025-08-03 11:46:18.336 19.45 w-P1 PSN PS25gav Pan-STARRS N
263307 2025-07-21 18:34:29 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 23:34:04.140 +01:34:45.78 2025-07-21 03:35:14.208 19.011 orange-ATLAS PSN ATLAS25iat ATLAS N
263279 2025-07-21 09:42:37 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 23:34:04.157 +01:34:45.58 2025-07-19 08:41:22.001 19.7577 r-ZTF PSN ZTF25abbzsku ZTF N
263078 2025-07-20 10:46:09 GOTO_bot A. Kumar, D. O'Neill, K. Ackley et al. GOTO GOTO 23:34:04.146 +01:34:45.24 2025-07-20 03:49:21.792 19.42 L-GOTO Other GOTO25fcs GOTO This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Animesh Roy, Henryk Krawczyk, Pietro Maiorana, Ciro Sirio Perrella, Svetoslav Alexandrov 2025TNSTR2783....1K N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21764 2025-08-11 18:43:38 ZTF_Bot1 J. Sollerman, A. Mehla, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ic 0.044231 1 ZTF 2025TNSCR3150....1S
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
21764 2025-07-27 11:17:51 P60 / SEDM 2700 SEDmRobot ZTF tns_2025rop_2025-07-27_11-17-51.353251_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Fri, 08/08/2025 - 23:34

Object coordinates updated

Object coordinates updated according to AT-report 265275 of Group Pan-STARRS
Previous RA, DEC: 23:34:04.157, +01:34:45.58 (353.5173202, +1.5793285)
Updated RA, DEC: 23:34:04.147, +01:34:45.55 (353.517280692, +1.57931930093)

TNS
System

Mon, 07/21/2025 - 09:42

Object coordinates updated

Object coordinates updated according to AT-report 263279 of Group ZTF
Previous RA, DEC: 23:34:04.146, +01:34:45.24 (353.517276, +1.579233)
Updated RA, DEC: 23:34:04.157, +01:34:45.58 (353.5173202, +1.5793285)