RA/DEC (2000)
20:27:09.936 -35:14:41.36
306.791400881 -35.2448233889
Type
SN Ic
Redshift
0.0107
Related AstroNotes: 2025-150
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-03-13 18:20:48.480
TNS AT
Y
Public
Y
Discovery Mag
18.72
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, F. Jiménez-Ibarra, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, L. Nuttall, E. Pallé, D. Pollacco, T. Killestein, A. Kumar, on behalf of GOTO collaboration

Spectra

 SN_2025efq - 2025-05-20 08:10:22 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
 SN_2025efq - 2025-05-06 19:12:00 ANU-2.3m / WiFeS (DEBASS)z=
Show H at z=vexp= km/s
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Show [Ca II] 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

 GOTO-S_GOTO-3_L
 ATLAS-CHL_ATLAS-04_orange
 ATLAS-STH_ATLAS-03_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
21072 2025-05-20 08:10:22 ESO-NTT / EFOSC2-NTT 300 Stefano Pio Cosentino, Callum Francis Aster Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai, Meng-Han Lee, Jie-Lin Yang ePESSTO+ tns_2025efq_2025-05-20_08-10-22_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025efq_2025-05-20_08-10-22_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
20990 2025-05-06 19:12:00 ANU-2.3m / WiFeS 1200 Robotic Bailey Martin DEBASS tns_2025efq_2025-05-06.8_ANU-2.3m_WiFeS_DEBASS.dat tns_2025efq_2025-05-06.8_ANU-2.3m_WiFeS_DEBASS.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2024-11-22 10:03:00 - 2025-03-13 18:20:48 2460636.918751 - 2460748.264455 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
475167 2025-03-13 18:20:48 2460748.264455 18.72 0.19 ABMag L-GOTO GOTO-S_GOTO-3 180
475166 2024-11-22 10:03:00 2460636.918751 20 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-03-16 09:16:04 - 2025-03-16 09:16:04 2460750.88616 - 2460750.88616 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
476380 2025-03-16 09:16:04 2460750.88616 17.505 0.101 18.38 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2024-12-02 19:51:43 - 2024-12-02 19:51:43 2460647.32758 - 2460647.32758 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
476379 2024-12-02 19:51:43 2460647.32758 18.37 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-06-07 13:25:08 - 2025-06-07 13:25:08 2460834.05912 - 2460834.05912 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494378 2025-06-07 13:25:08 2460834.05912 18.02 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
258101 2025-06-10 00:27:43 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 20:27:09.936 -35:14:41.36 2025-06-07 13:25:07.968 18.02 w-P1 PSN PS25dfl Pan-STARRS N
248610 2025-03-16 12:31:17 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 20:27:09.924 -35:14:41.42 2025-03-16 09:16:04.224 17.505 orange-ATLAS PSN ATLAS25crq ATLAS N
247823 2025-03-13 19:41:42 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 20:27:09.952 -35:14:41.47 2025-03-13 18:20:48.480 18.72 L-GOTO Other GOTO25baq GOTO 2025TNSTR.972....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
21072 2025-05-20 18:16:16 ePESSTOplus_Bot1 Stefano Pio Cosentino, Callum Francis Aster, Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai, Meng-Han Lee, Jie-Lin Yang, Ofer Yaron on behalf of ePESSTO+ ePESSTO+ SN Ic 0.0107 1 ePESSTO+ 2025TNSCR1857....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
21072 2025-05-20 08:10:22 ESO-NTT / EFOSC2-NTT 300 Stefano Pio Cosentino, Callum Francis Aster Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Cheng-Han Lai, Meng-Han Lee, Jie-Lin Yang ePESSTO+ tns_2025efq_2025-05-20_08-10-22_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025efq_2025-05-20_08-10-22_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
20990 2025-05-08 03:53:02 Bailey Martin B. Martin (ANU), K. Auchettl (University of Melbourne/UCSC), B. P. Schmidt (ANU), P. Armstrong (ANU), D. Cao (ANU), C. Lidman (ANU), L. Rauf (ANU), J. Shi (University of Melbourne), and B. E. Tucker (ANU) DEBASS SN Ic 0.0104 1 DEBASS Classified with superfit. The best fitting spectrum is SN1997C, a Type Ic 2025TNSCR1714....1M
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
20990 2025-05-06 19:12:00 ANU-2.3m / WiFeS 1200 Robotic Bailey Martin DEBASS tns_2025efq_2025-05-06.8_ANU-2.3m_WiFeS_DEBASS.dat tns_2025efq_2025-05-06.8_ANU-2.3m_WiFeS_DEBASS.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 258101 of Group Pan-STARRS
Previous RA, DEC: 20:27:09.924, -35:14:41.42 (306.791351429, -35.2448385714)
Updated RA, DEC: 20:27:09.936, -35:14:41.36 (306.791400881, -35.2448233889)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 248610 of Group ATLAS
Previous RA, DEC: 20:27:09.952, -35:14:41.47 (306.791466, -35.244852)
Updated RA, DEC: 20:27:09.924, -35:14:41.42 (306.791351429, -35.2448385714)