RA/DEC (2000)
19:56:35.332 +50:14:22.58
299.1472168 +50.2396045
Type
SN Ia
Redshift
0.03021
Discovery ReportClassification Report
Related AstroNotes: 2025-237
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-02-14 06:50:27.456
TNS AT
Y
Public
Y
Discovery Mag
16.67
Filter
L-GOTO
Reporter/s
G. Ramsay, D. O'Neill, K. Ackley, M. Dyer, F. Jiménez-Ibarra, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, K. Noysena, R. Kotak, R. Breton, L. Nuttall, E. Pallé, D. Pollacco, T. Killestein, A. Kumar, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025bof - 2025-02-15 03:32:00 Other / Other (None)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
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▌Show N II at z=vexp= km/s
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▌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
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▌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
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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

 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌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
20383 2025-02-15 03:32:00 Other / Other 3600 Claudio Balcon Claudio Balcon None tns_2025bof_2025-02-15_03-32-00_Other_Other_None.dat tns_2025bof_2025-02-15_03-32-00_Other_Other_None.fit Object We obtained the low-resolution spectrum R~100 using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-1 2024-12-07 20:05:21 - 2025-02-14 06:50:27 2460652.337049 - 2460720.785036 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
468566 2025-02-14 06:50:27 2460720.785036 16.67 0.04 ABMag L-GOTO GOTO-N_GOTO-1 180
468565 2024-12-07 20:05:21 2460652.337049 19.6 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-02-20 12:06:04 - 2025-02-20 12:06:04 2460727.004213 - 2460727.004213 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
476389 2025-02-20 12:06:04 2460727.004213 16.397 0.0403681 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-03-16 12:22:42 - 2025-03-16 12:22:42 2460751.0157639 - 2460751.0157639 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
476390 2025-03-16 12:22:42 2460751.0157639 18.0293 0.082784 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-02-19 15:19:44 - 2025-02-19 15:19:44 2460726.1387 - 2460726.1387 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
470039 2025-02-19 15:19:44 2460726.1387 16.533 0.024 19.13 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2024-12-15 05:27:14 - 2024-12-15 05:27:14 2460659.72725 - 2460659.72725 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
470038 2024-12-15 05:27:14 2460659.72725 17.53 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 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
248615 2025-03-16 13:08:25 Fritz Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al. ZTF ZTF 19:56:35.332 +50:14:22.58 2025-02-20 12:06:04.003 16.397 r-ZTF PSN ZTF25aaggqco ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
245152 2025-02-20 05:51:06 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 19:56:35.319 +50:14:22.58 2025-02-19 15:19:43.680 16.533 orange-ATLAS PSN ATLAS25btk ATLAS N
244363 2025-02-14 09:26:13 GOTO_bot G. Ramsay,D. O'Neill,K. Ackley et al. GOTO GOTO 19:56:35.338 +50:14:22.61 2025-02-14 06:50:27.456 16.67 L-GOTO Other GOTO25agk GOTO 2025TNSTR.603....1R N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20383 2025-02-15 04:33:00 Claudio Balcon Claudio Balcon (Belluno A.O. ISSP) None SN Ia 0.03021 1 GELATO (Harutyunyan et al., 2008, A&A, 488, 383) suggests that this low S/N spectrum resembles that of a type Ia supernova at the redshift of the host galaxy, value from NED. 2025TNSCR.619....1B
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
20383 2025-02-15 03:32:00 Other / Other 3600 Claudio Balcon Claudio Balcon None tns_2025bof_2025-02-15_03-32-00_Other_Other_None.dat tns_2025bof_2025-02-15_03-32-00_Other_Other_None.fit Object We obtained the low-resolution spectrum R~100 using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.

Comments

TNS
System

Sun, 03/16/2025 - 13:08

Object coordinates updated

Object coordinates updated according to AT-report 248615 of Group ZTF
Previous RA, DEC: 19:56:35.319, +50:14:22.58 (299.147164444, +50.2396055556)
Updated RA, DEC: 19:56:35.332, +50:14:22.58 (299.1472168, 50.2396045)

TNS
System

Thu, 02/20/2025 - 05:51

Object coordinates updated

Object coordinates updated according to AT-report 245152 of Group ATLAS
Previous RA, DEC: 19:56:35.338, +50:14:22.61 (299.147242, +50.239614)
Updated RA, DEC: 19:56:35.319, +50:14:22.58 (299.147164444, 50.2396055556)

Donnie
Hodges

Sat, 02/15/2025 - 05:56

Host galaxy likely WISEA J195634.94+501419.8

The likely host galaxy is WISEA J195634.94+501419.8