RA/DEC (2000)
02:26:20.652 +37:29:59.92
36.5860481777 +37.4999777415
Type
SN Ic-BL
Redshift
0.12
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-08-27 11:42:36.003
TNS AT
Y
Public
Y
Discovery Mag
19.9415
Filter
g-ZTF
Reporter/s
F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025wkm - 2025-09-03 04:37:19 NOT / ALFOSC (None)z=
▌Show H at z=vexp= km/s
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▌Show O at z=vexp= km/s
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▌Show O V at z=vexp= km/s
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▌Show Na at z=vexp= km/s
▌Show Mg at z=vexp= km/s
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▌Show Si II at z=vexp= km/s
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▌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
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▌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
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌PS1_GPC1_r
   
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
21958 2025-09-03 04:37:19 NOT / ALFOSC 3600 V. Vuolteenaho, M. Pursiainen, I. Worssam G. Corcoran None tns_2025wkm_2025-09-03_04-37-19_NOT_ALFOSC_None.dat Object Spectrum was taken approximately 6.9 days post the associated Einstein Probe trigger using grism 4 and consisted of 4 x 900s exposures.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-09-16 04:51:20 - 2025-09-16 04:51:20 2460934.70231 - 2460934.70231 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517745 2025-09-16 04:51:20 2460934.70231 19.787 0.144 20.05 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
r-ZTF P48_ZTF-Cam 2025-08-27 09:38:04 - 2025-08-27 09:38:04 2460914.9014352 - 2460914.9014352 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514393 2025-08-27 09:38:04 2460914.9014352 20.5412 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-08-27 11:42:36 - 2025-08-30 09:42:54 2460914.9879167 - 2460917.9047917 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514395 2025-08-30 09:42:54 2460917.9047917 19.8557 0.125197 20.5687 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
514394 2025-08-27 11:42:36 2460914.9879167 19.9415 0.140811 20.6154 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-09-15 12:12:20 - 2025-09-15 12:12:20 2460934.00856 - 2460934.00856 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517744 2025-09-15 12:12:20 2460934.00856 19.39 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
r-P1 PS1_GPC1 2025-10-04 14:03:33 - 2025-10-04 14:03:33 2460953.0858 - 2460953.0858 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522655 2025-10-04 14:03:33 2460953.0858 20.41 0.31 20.6 ABMag r-P1 PS1_GPC1 27 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
272676 2025-10-09 17:49:22 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 02:26:20.652 +37:29:59.92 2025-10-04 14:03:33.120 20.41 r-P1 PSN PS25htq Pan-STARRS N
270332 2025-09-16 15:30:42 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 02:26:20.637 +37:29:59.70 2025-09-16 04:51:19.584 19.787 wide-ATLAS PSN ATLAS25lnp ATLAS N
268705 2025-08-31 02:08:13 ALeRCE F. Forster,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 02:26:20.638 +37:29:59.99 2025-08-27 11:42:36.003 19.9415 g-ZTF PSN ZTF25abmpngy ZTF Early SN candidate (g-rise > 0.18+-0.05 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25abmpngy 2025TNSTR3470....1F N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21958 2025-09-03 13:49:30 Gregory Corcoran G. Corcoran (UCD), A. J. Levan (Radboud and Warwick), D. B. Malesani (DAWN/NBI and Radboud), A. Martin-Carrillo (UCD), P. G. Jonker (Radboud), R. A. J. Eyles-Ferris (Leicester), V. Vuolteenaho (NOT and Oulu Univ.), M. Pursiainen (Warwick), I. Worssam (Birmingham) None SN Ic-BL 0.12 1 The spectrum shows features consistent with broad-lined type Ic supernovae at a comparable phase, though with an excess of flux on the blue end, providing a good match to the super-luminous SN 2011kl (associated with GRB 111209A; Greiner et al. 2015, doi:10.1038/nature14579) near peak. 2025TNSCR3545....1C
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
21958 2025-09-03 04:37:19 NOT / ALFOSC 3600 V. Vuolteenaho, M. Pursiainen, I. Worssam G. Corcoran None tns_2025wkm_2025-09-03_04-37-19_NOT_ALFOSC_None.dat Object Spectrum was taken approximately 6.9 days post the associated Einstein Probe trigger using grism 4 and consisted of 4 x 900s exposures.

Comments

TNS
System

Thu, 10/09/2025 - 17:49

Object coordinates updated

Object coordinates updated according to AT-report 272676 of Group Pan-STARRS
Previous RA, DEC: 02:26:20.638, +37:29:59.99 (36.58599089997, +37.49999715)
Updated RA, DEC: 02:26:20.652, +37:29:59.92 (36.5860481777, +37.4999777415)