RA/DEC (2000)
14:07:30.466 -00:47:22.86
211.8769431 -0.7896847
Type
SN Ia
Redshift
0.034
Discovery ReportClassification Report
Related AstroNotes: 2025-158
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-05-27 01:33:09.216
TNS AT
Y
Public
Y
Discovery Mag
19.22
Filter
L-GOTO
Reporter/s
A. Kumar, 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, D. O'Neill, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025mbz - 2025-05-28 00:00:00 Lick-3m / KAST (UCSC)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

 ▌WFST_WFST-WFC_g
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌CTIO-4m_DECAM_g
 ▌ATLAS-MLO_ATLAS-01_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
21170 2025-05-28 00:00:00 Lick-3m / KAST 3000 Kishore C. Patra (UCSC) Kishore C. Patra (UCSC) UCSC tns_2025mbz_2025-05-28_Lick-3m_KAST_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-WFST WFST_WFST-WFC 2025-05-22 16:23:31 - 2025-05-23 16:20:38 2460818.183 - 2460819.181 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492005 2025-05-23 16:20:38 2460819.181 21.25 0.06 ABMag g-WFST WFST_WFST-WFC 90
492004 2025-05-22 16:23:31 2460818.183 22.78 ABMag g-WFST WFST_WFST-WFC 90 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-05-25 22:44:42 - 2025-05-25 22:44:42 2460821.44771 - 2460821.44771 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492367 2025-05-25 22:44:42 2460821.44771 19.35 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-05-23 23:26:53 - 2025-05-27 01:33:09 2460819.476995 - 2460822.564688 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491763 2025-05-27 01:33:09 2460822.564688 19.22 0.15 ABMag L-GOTO GOTO-N_GOTO-1 180
491762 2025-05-23 23:26:53 2460819.476995 19.5 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-05-27 01:39:27 - 2025-05-27 01:39:27 2460822.5690625 - 2460822.5690625 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494422 2025-05-27 01:39:27 2460822.5690625 20.54 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-06-10 01:04:19 - 2025-06-10 01:04:19 2460836.5446644 - 2460836.5446644 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
494423 2025-06-10 01:04:19 2460836.5446644 16.86 0.03 19.44 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic
r-ZTF P48_ZTF-Cam 2025-05-31 06:20:03 - 2025-05-31 06:20:03 2460826.7639236 - 2460826.7639236 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492951 2025-05-31 06:20:03 2460826.7639236 17.6058 0.048211 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-05-08 09:33:02 - 2025-05-28 07:14:44 2460803.8979398 - 2460823.8018981 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492950 2025-05-28 07:14:44 2460823.8018981 18.3907 0.055718 ABMag g-ZTF P48_ZTF-Cam
492949 2025-05-08 09:33:02 2460803.8979398 19.6818 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
g-Sloan CTIO-4m_DECAM 2025-05-23 04:58:12 - 2025-05-23 04:58:12 2460818.7070849 - 2460818.7070849 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493211 2025-05-23 04:58:12 2460818.7070849 22.5931 0.0821628 ABMag g-Sloan CTIO-4m_DECAM
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-05-27 08:55:54 - 2025-05-27 08:55:54 2460822.87215 - 2460822.87215 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492368 2025-05-27 08:55:54 2460822.87215 18.866 0.136 19.41 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
258123 2025-06-10 10:02:35 BlackGEM_Bot1 F. Stoppa,H. Tranin,D. Pieterse et al. BlackGEM BlackGEM 14:07:30.460 -00:47:23.06 2025-06-10 01:04:19.000 16.86 BG-q-BlackGem PSN BGEM J140730.45-004723.0 BlackGEM N
257546 2025-06-01 05:19:53 DESIRT_Bot Xander J. Hall (Carnegie Mellon U.),Lei Hu (Carnegie Mellon U.),Antonella Palmese (Carnegie Mellon U.) et al. DESIRT DESIRT 14:07:30.466 -00:47:23.12 2025-05-23 04:58:11.712 22.5931 g-Sloan PSN T202505231407305m004723 DESIRT N
257400 2025-05-31 07:18:53 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 14:07:30.466 -00:47:22.86 2025-05-28 07:14:43.995 18.3907 g-ZTF PSN ZTF25aasqlwu ZTF N
257122 2025-05-29 00:09:45 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 14:07:30.488 -00:47:22.62 2025-05-27 08:55:53.760 18.866 orange-ATLAS PSN ATLAS25fqc ATLAS N
256977 2025-05-27 13:14:53 WFST_SN Zelin Xu,Dezheng Meng,Ji-an Jiang et al. WFST WFST 14:07:30.460 -00:47:22.98 2025-05-23 16:20:38.400 21.25 g-WFST PSN WFST0614dwbc WFST N
256861 2025-05-27 04:24:42 GOTO_bot A. Kumar,K. Ackley,M. Dyer et al. GOTO GOTO 14:07:30.452 -00:47:23.25 2025-05-27 01:33:09.216 19.22 L-GOTO Other GOTO25ddg GOTO 2025TNSTR1983....1K N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21170 2025-05-28 21:09:23 Kishore C. Patra Kishore C. Patra (UCSC), Ryan J. Foley (UCSC) UCSC SN Ia 0.034 1 Add UCSC We report the classification of the optical transient SN 2025mbz from spectroscopic observations with the Kast spectrograph on the Shane telescope. The target was supplied by GOTO. Observations were made on 2025 May 28 UT. Classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024). The redshift was determined using narrow emission lines from the host galaxy, including H I, [N II], [O III], [O II], [O I], and [S II]. For the supernova, we measure Si II 6355 and Ca II near-infrared triplet absorption velocities of -16,500  km/s and -28,000 km/s, respectively. 2025TNSCR2009....1P
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
21170 2025-05-28 00:00:00 Lick-3m / KAST 3000 Kishore C. Patra (UCSC) Kishore C. Patra (UCSC) UCSC tns_2025mbz_2025-05-28_Lick-3m_KAST_UCSC.flm Object

Comments

TNS
System

Sat, 05/31/2025 - 07:18

Object coordinates updated

Object coordinates updated according to AT-report 257400 of Group ZTF
Previous RA, DEC: 14:07:30.488, -00:47:22.62 (211.877032667, -0.789616666667)
Updated RA, DEC: 14:07:30.466, -00:47:22.86 (211.8769431, -0.7896847)

TNS
System

Thu, 05/29/2025 - 00:09

Object coordinates updated

Object coordinates updated according to AT-report 257122 of Group ATLAS
Previous RA, DEC: 14:07:30.452, -00:47:23.25 (211.876885, -0.789792)
Updated RA, DEC: 14:07:30.488, -00:47:22.62 (211.877032667, -0.789616666667)