RA/DEC (2000)
23:20:04.673 +16:17:02.89
350.019472135 +16.2841351063
Type
SN Ic-BL
Redshift
0.3
Discovery ReportClassification Report
Related AstroNotes: 2025-274, 2025-275
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-08-29 12:26:16.800
TNS AT
Y
Public
Y
Discovery Mag
19.023
Filter
cyan-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025wfz - 2025-08-30 01:53:46 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

 ▌PS2_GPC2_w
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_cyan
 ▌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
21920 2025-08-30 01:53:46 NOT / ALFOSC 1200 M. Pursiainen, I. Worssam M. Pursiainen, I. Worssam GOTO tns_2025wfz_2025-08-30_01-53-45.706_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2025-08-29 08:56:42 - 2025-08-29 08:56:42 2460916.87271 - 2460916.87271 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517284 2025-08-29 08:56:42 2460916.87271 19.26 0.02 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2025-08-28 03:49:46 - 2025-08-28 23:40:31 2460915.659564 - 2460916.486468 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514133 2025-08-28 23:40:31 2460916.486468 19.45 0.13 ABMag L-GOTO GOTO-N_GOTO-1 180
514132 2025-08-28 03:49:46 2460915.659564 20.1 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-08-27 08:46:12 - 2025-08-30 08:21:05 2460914.8654167 - 2460917.8479745 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514149 2025-08-30 08:21:05 2460917.8479745 19.0609 0.0939609 ABMag r-ZTF P48_ZTF-Cam
514147 2025-08-27 08:46:12 2460914.8654167 20.9299 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-08-30 06:37:00 - 2025-08-30 06:37:00 2460917.7756944 - 2460917.7756944 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514148 2025-08-30 06:37:00 2460917.7756944 19.4139 0.14574 ABMag g-ZTF P48_ZTF-Cam
cyan-ATLAS ATLAS-MLO_ATLAS-01 2025-08-29 12:26:17 - 2025-08-29 12:26:17 2460917.01825 - 2460917.01825 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513887 2025-08-29 12:26:17 2460917.01825 19.023 0.116 19.61 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-08-26 11:14:17 - 2025-08-26 11:14:17 2460913.96825 - 2460913.96825 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513886 2025-08-26 11:14:17 2460913.96825 20.25 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
270110 2025-09-14 23:41:46 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 23:20:04.673 +16:17:02.89 2025-08-29 08:56:42.144 19.26 w-P1 PSN PS25hmk Pan-STARRS N
268584 2025-08-30 08:57:19 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 23:20:04.670 +16:17:02.90 2025-08-30 06:36:59.996 19.4139 g-ZTF PSN ZTF25abmtiec ZTF N
268578 2025-08-30 07:57:10 GOTO_bot I. Worssam,J. Lyman,K. Ackley et al. GOTO GOTO 23:20:04.612 +16:17:03.26 2025-08-28 23:40:31.008 19.45 L-GOTO Other GOTO25gnr GOTO N
268451 2025-08-29 16:20:00 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 23:20:04.638 +16:17:03.29 2025-08-29 12:26:16.800 19.023 cyan-ATLAS PSN ATLAS25ktd ATLAS 2025TNSTR3431....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21920 2025-08-30 10:21:33 Tom Killestein I. Worssam, M. Pursiainen, J. Lyman, D. O'Neill, 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 Ic-BL 0.3 1 GOTO Reasonable quality matches are obtained to templates of SNe Ic-BL at z=0.3, with no convincing matches found assuming the source is at the redshift (z=0.024) of the nearby galaxy. 2025TNSCR3462....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
21920 2025-08-30 01:53:46 NOT / ALFOSC 1200 M. Pursiainen, I. Worssam M. Pursiainen, I. Worssam GOTO tns_2025wfz_2025-08-30_01-53-45.706_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Sun, 09/14/2025 - 23:41

Object coordinates updated

Object coordinates updated according to AT-report 270110 of Group Pan-STARRS
Previous RA, DEC: 23:20:04.670, +16:17:02.90 (350.0194601, +16.2841392)
Updated RA, DEC: 23:20:04.673, +16:17:02.89 (350.019472135, +16.2841351063)

TNS
System

Sat, 08/30/2025 - 08:57

Object coordinates updated

Object coordinates updated according to AT-report 268584 of Group ZTF
Previous RA, DEC: 23:20:04.638, +16:17:03.29 (350.019326667, +16.2842466667)
Updated RA, DEC: 23:20:04.670, +16:17:02.90 (350.0194601, +16.2841392)