RA/DEC (2000)
20:28:31.195 +13:40:42.34
307.1299811 +13.6784272
Type
SN Ic
Redshift
0.027
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-06-05 01:19:13.728
TNS AT
Y
Public
Y
Discovery Mag
19.18
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, 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, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025myk - 2025-06-07 13:15:19 UH88 / SNIFS (SCAT)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

 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
21258 2025-06-07 13:15:19 UH88 / SNIFS 1800 Hinkle SCAT tns_2025myk_2025-06-07_13-15-19_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-06-05 07:06:44 - 2025-06-05 07:06:44 2460831.79634 - 2460831.79634 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494107 2025-06-05 07:06:44 2460831.79634 19.24 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-06-01 02:39:24 - 2025-06-05 01:19:14 2460827.610705 - 2460831.555018 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493805 2025-06-05 01:19:14 2460831.555018 19.18 0.21 ABMag L-GOTO GOTO-N_GOTO-1 180
493804 2025-06-01 02:39:24 2460827.610705 19.2 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2025-06-09 09:54:00 - 2025-06-22 08:54:04 2460835.9125 - 2460848.8708796 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
497542 2025-06-22 08:54:04 2460848.8708796 19.3645 0.084614 ABMag g-ZTF P48_ZTF-Cam
497541 2025-06-09 09:54:00 2460835.9125 19.1822 0.0737165 ABMag g-ZTF P48_ZTF-Cam
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-06-06 12:41:59 - 2025-06-06 12:41:59 2460833.02916 - 2460833.02916 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494108 2025-06-06 12:41:59 2460833.02916 19.005 0.132 19.51 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 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
259756 2025-06-22 09:24:11 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 20:28:31.195 +13:40:42.34 2025-06-09 09:54:00.000 19.1822 g-ZTF PSN ZTF25aauhgeh ZTF N
257988 2025-06-08 09:19:21 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 20:28:31.219 +13:40:41.91 2025-06-06 12:41:59.424 19.005 cyan-ATLAS PSN ATLAS25fyv ATLAS N
257845 2025-06-05 17:05:31 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 20:28:31.204 +13:40:41.74 2025-06-05 01:19:13.728 19.18 L-GOTO Other GOTO25diw GOTO 2025TNSTR2104....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
21258 2025-06-07 14:04:58 Jason Hinkle Jason Hinkle (UH/IfA) on behalf of SCAT SCAT SN Ic 0.027 1 Add SCAT Redshift estimated from narrow host emission lines. Cross-correlation with SNID (Blondin & Tonry 2007) gives matches to normal SNe Ic at this redshift. 2025TNSCR2137....1H
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
21258 2025-06-07 13:15:19 UH88 / SNIFS 1800 Hinkle SCAT tns_2025myk_2025-06-07_13-15-19_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Sun, 06/22/2025 - 09:24

Object coordinates updated

Object coordinates updated according to AT-report 259756 of Group ZTF
Previous RA, DEC: 20:28:31.219, +13:40:41.91 (307.130077778, +13.6783077778)
Updated RA, DEC: 20:28:31.195, +13:40:42.34 (307.1299811, +13.6784272)

TNS
System

Sun, 06/08/2025 - 09:19

Object coordinates updated

Object coordinates updated according to AT-report 257988 of Group ATLAS
Previous RA, DEC: 20:28:31.204, +13:40:41.74 (307.130015, +13.678262)
Updated RA, DEC: 20:28:31.219, +13:40:41.91 (307.130077778, +13.6783077778)