RA/DEC (2000)
15:09:10.560 -06:31:48.46
227.294001 -6.5301284
Type
SN Ic-BL
Redshift
0.0239
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-29 21:10:21.216
TNS AT
Y
Public
Y
Discovery Mag
18.761
Filter
wide-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)

Spectra

 SN_2025svz - 2025-08-17 17:24:41 Lesedi / Mookodi (SAAO IO)z=
Show H at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ATLAS-TDO_ATLAS-05_wide
 GOTO-S_GOTO-3_L
 ATLAS-STH_ATLAS-03_orange
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_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
21811 2025-08-17 17:24:41 Lesedi / Mookodi 600 N. Erasmus, S. Potter, C. van Gend, H. Worters, P. Rabe (all SAAO) N. Erasmus, D. Cunnama, S. Potter (all SAAO) SAAO IO tns_2025svz_2025-08-17_17-24-41_Lesedi_Mookodi_SAAO_IO.flm Object The spectrum was taken with the SAAO's 1-m Lesedi robotic telescope with the Mookodi low-resolution spectrograph and imager as part of the “SAAO IO” rapid follow-up program. The spectrum was taken with the widest (4") slit width which resulted in a spectral resolution of R ~ 200 at 6000 Angstrom.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-07-29 21:10:21 - 2025-07-29 21:10:21 2460886.38219 - 2460886.38219 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
506601 2025-07-29 21:10:21 2460886.38219 18.761 0.103 19.62 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-S_GOTO-3 2025-08-06 09:49:19 - 2025-08-06 09:49:19 2460893.909255 - 2460893.909255 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507640 2025-08-06 09:49:19 2460893.909255 16.85 0.06 ABMag L-GOTO GOTO-S_GOTO-3 180
orange-ATLAS ATLAS-STH_ATLAS-03 2025-07-28 18:51:34 - 2025-07-28 18:51:34 2460885.28581 - 2460885.28581 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
506600 2025-07-28 18:51:34 2460885.28581 19.19 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-07-20 22:36:31 - 2025-07-20 22:36:31 2460877.44202 - 2460877.44202 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507639 2025-07-20 22:36:31 2460877.44202 19.4 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-02 03:22:31 - 2025-09-07 03:26:48 2460920.6406366 - 2460925.6436111 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516135 2025-09-07 03:26:48 2460925.6436111 16.1476 0.0365956 ABMag r-ZTF P48_ZTF-Cam
516134 2025-09-02 03:22:31 2460920.6406366 16.0094 0.044437 ABMag r-ZTF P48_ZTF-Cam
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
269533 2025-09-08 15:36:28 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 15:09:10.560 -06:31:48.46 2025-09-02 03:22:31.002 16.0094 r-ZTF PSN ZTF25abnzacu ZTF N
265140 2025-08-06 12:59:08 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 15:09:10.586 -06:31:48.64 2025-08-06 09:49:19.200 16.85 L-GOTO Other GOTO25fru GOTO N
264574 2025-08-01 08:53:36 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 15:09:10.556 -06:31:48.41 2025-07-29 21:10:21.216 18.761 wide-ATLAS PSN ATLAS25irk ATLAS 2025TNSTR3022....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
21811 2025-08-18 11:05:52 io robot N. Erasmus, S. Potter (all South African Astronomical Observatory), S. J. Smartt, K. W. Smith (Oxford/QUB), S. Srivastav, F. Stoppa (Oxford) SAAO IO SN Ic-BL 0.0239 1 SAAO IO Spectral template matching using SNID-SAGE shows a good match with a Type Ic-BL supernova and the reported redshift is estimated from the H-alpha line from the host galaxy present in the obtained spectrum. 2025TNSCR3265....1E
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
21811 2025-08-17 17:24:41 Lesedi / Mookodi 600 N. Erasmus, S. Potter, C. van Gend, H. Worters, P. Rabe (all SAAO) N. Erasmus, D. Cunnama, S. Potter (all SAAO) SAAO IO tns_2025svz_2025-08-17_17-24-41_Lesedi_Mookodi_SAAO_IO.flm Object The spectrum was taken with the SAAO's 1-m Lesedi robotic telescope with the Mookodi low-resolution spectrograph and imager as part of the “SAAO IO” rapid follow-up program. The spectrum was taken with the widest (4") slit width which resulted in a spectral resolution of R ~ 200 at 6000 Angstrom.

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 269533 of Group ZTF
Previous RA, DEC: 15:09:10.556, -06:31:48.41 (227.293981667, -6.530115)
Updated RA, DEC: 15:09:10.560, -06:31:48.46 (227.294001, -6.5301284)