RA/DEC (2000)
11:10:40.441 +21:06:26.87
167.668505874 +21.1074646977
Type
SN II
Redshift
0.031
Discovery ReportClassification Report
Reporting Group
Tomo-e Gozen
Discovering Data Source
Tomo-e Gozen
Discovery Date
2024-01-13 19:30:26.000
TNS AT
Y
Public
Y
Discovery Mag
17.57
Filter
Other-
Reporter/s
Ryotaro Koshi (The University of Tokyo), Ryuichi Hoshino (The University of Electro-Communications), Ichiro Takahashi (Tokyo Institute of Technology), Shigeyuki Sako (The University of Tokyo), Taiga Sasaoka (The University of Tokyo), Nozomu Tominaga (National Astronomical Observatory of Japan), Kenta Taguchi (Kyoto University)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2024acn - 2024-01-15 17:53:00 Lijiang-2.4m / YFOSC (LiONS)z=
 ▌SN_2024acn - 2024-01-15 16:54:24 Other / Other (None)z=
▌Show H at z=vexp= km/s
▌Show He 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

 ▌BG4_BlackGEM-Cam4_BG-q
 ▌ML1_MeerLICHT-Cam_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌PS1_GPC1_w
 ▌Other_Other_g
 ▌Other_Other_I
 ▌Other_Other_R
 ▌Other_Other_Other
   
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
16509 2024-01-15 17:53:00 Lijiang-2.4m / YFOSC 2200 Jujia Zhang LiONS tns_2024acn_2024-01-15_17-52-59.986_Lijiang-2.4m_YFOSC_LiONS.dat Object
16511 2024-01-15 16:54:24 Other / Other 2700 Kenta Taguchi None tns_2024acn_2024-01-15_16-54-24_Other_Other.dat tns_2024acn_2024-01-15_16-54-24_Other_Other.fits Object Our spectrum shows prominent emission lines of the Balmer series and He II (4686 A). We confirm the classification as a young SN II proposed by Li et al. We performed a spectroscopic follow-up observation with KOOLS-IFU mounted on the 3.8-m Seimei telescope at Okayama Observatory of Kyoto University. The spectral resolution is ~ 500, and the wavelength coverage is 4100-8500 A. We took the median of three final spectra produced for each exposure by the KOOLS-IFU Quick Look system.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
BG-q-BlackGem BG4_BlackGEM-Cam4 2024-06-19 23:58:38 - 2024-06-19 23:58:38 2460481.4990509 - 2460481.4990509 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
463604 2024-06-19 23:58:38 2460481.4990509 17.92 0.05 19.8 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem ML1_MeerLICHT-Cam 2023-08-28 19:33:28 - 2023-08-28 19:33:28 2460185.3149074 - 2460185.3149074 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
463603 2023-08-28 19:33:28 2460185.3149074 20.17 ABMag BG-q-BlackGem ML1_MeerLICHT-Cam 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2024-01-05 12:41:46 - 2024-01-13 12:05:46 2460315.029 - 2460323.004 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
385843 2024-01-13 12:05:46 2460323.004 18.06 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
385842 2024-01-05 12:41:46 2460315.029 20.49 ABMag r-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
g-ZTF P48_ZTF-Cam 2024-01-15 09:36:00 - 2024-01-15 09:36:00 2460324.9 - 2460324.9 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
385844 2024-01-15 09:36:00 2460324.9 16.85 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2024-01-11 12:55:17 - 2024-01-14 12:29:12 2460321.03839 - 2460324.02028 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
385784 2024-01-14 12:29:12 2460324.02028 17.779 0.06 19.49 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
385783 2024-01-11 12:55:17 2460321.03839 19.26 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
w-P1 PS1_GPC1 2024-01-21 11:01:30 - 2024-01-21 11:01:30 2460330.95937 - 2460330.95937 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
387236 2024-01-21 11:01:30 2460330.95937 16.34 0 22 ABMag w-P1 PS1_GPC1 45 Robot
g-Sloan Other_Other 2024-01-14 14:19:20 - 2024-01-14 14:19:20 2460324.0967593 - 2460324.0967593 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
385773 2024-01-14 14:19:20 2460324.0967593 17.03 0.04 19 ABMag g-Sloan Other_Other Observation with CCD cameras on the MITSuME 50cm telescope Akeno.
I-Cousins Other_Other 2024-01-14 14:19:20 - 2024-01-14 14:19:20 2460324.0967593 - 2460324.0967593 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
385775 2024-01-14 14:19:20 2460324.0967593 17.81 0.12 18.5 ABMag I-Cousins Other_Other Observation with CCD cameras on the MITSuME 50cm telescope Akeno.
R-Cousins Other_Other 2024-01-14 14:19:20 - 2024-01-14 14:19:20 2460324.0967593 - 2460324.0967593 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
385774 2024-01-14 14:19:20 2460324.0967593 17.4 0.04 19 ABMag R-Cousins Other_Other Observation with CCD cameras on the MITSuME 50cm telescope Akeno.
Other- Other_Other 2024-01-11 19:04:57 - 2024-01-13 19:30:26 2460321.2951042 - 2460323.3128009 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
385772 2024-01-13 19:30:26 2460323.3128009 17.57 0.11 18.21 ABMag Other- Other_Other Observation with the Tomo-e Gozen camera on the 1.05 Kiso Schmidt telescope. No filter used (the peak wavelength is 500nm and the wavelength range is 350-900nm).
385771 2024-01-11 19:04:57 2460321.2951042 19.42 ABMag Other- Other_Other [Last non detection] Observation with the Tomo-e Gozen camera on the 1.05 Kiso Schmidt telescope. No filter used (the peak wavelength is 500nm and the wavelength range is 350-900nm).
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
241807 2025-01-20 14:42:42 BlackGEM_Bot1 P. Groot, H. Tranin, F. Stoppa et al. BlackGEM BlackGEM 11:10:40.467 +21:06:27.11 2024-06-19 23:58:38.000 17.92 BG-q-BlackGem 1 PSN BGEM J111040.46+210627.1 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2024acn_atrep_241807_BlackGEM.pdf Finding Chart 2025-01-20 14:42:46 BlackGEM_Bot1
200374 2024-01-22 23:18:45 PS1_Bot1 K. C. Chambers, T. de Boer, J. Herman et al. Pan-STARRS Pan-STARRS 11:10:40.441 +21:06:26.87 2024-01-21 11:01:29.568 16.34 w-P1 PSN PS24pc Pan-STARRS N
199771 2024-01-15 11:38:12 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 11:10:40.461 +21:06:27.25 2024-01-13 12:05:45.600 18.06 r-ZTF PSN ZTF24aabpojp ZTF N
199748 2024-01-15 11:11:28 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 11:10:40.448 +21:06:26.91 2024-01-14 12:29:12.192 17.779 orange-ATLAS PSN ATLAS24att ATLAS N
199740 2024-01-15 09:36:03 Ryotaro Koshi Ryotaro Koshi (The University of Tokyo), Ryuichi Hoshino (The University of Electro-Communications), Ichiro Takahashi (Tokyo Institute of Technology) et al. Tomo-e Gozen Tomo-e Gozen 11:10:40.430 +21:06:27.76 2024-01-13 19:30:26.000 17.57 Other- PSN Tomo-e 202401aaayb Tomo-e Gozen The nearest PS1 galaxy is PSO J167.6689+21.1073 (separation of 2.1 arcsec) with a photometric redshift of 0.180, which would imply an absolute magnitude of -22.1 mag if this were the host galaxy. 2024TNSTR.155....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
16424 2024-01-16 05:00:14 Kenta Taguchi Kenta Taguchi (Kyoto University), Ryotaro Koshi (The University of Tokyo), Ryuichi Hoshino (The University of Electro-Communications), Ichiro Takahashi (Tokyo Institute of Technology), Shigeyuki Sako (The University of Tokyo), Taiga Sasaoka (The University of Tokyo), Nozomu Tominaga (National Astronomical Observatory of Japan) None SN II 1 Our spectrum shows prominent Balmer lines and He II (4686 A). We confirm the classification as a young SN II reported by Li et al. 2024TNSCR.172....1T
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
16511 2024-01-15 16:54:24 Other / Other 2700 Kenta Taguchi None tns_2024acn_2024-01-15_16-54-24_Other_Other.dat tns_2024acn_2024-01-15_16-54-24_Other_Other.fits Object Our spectrum shows prominent emission lines of the Balmer series and He II (4686 A). We confirm the classification as a young SN II proposed by Li et al. We performed a spectroscopic follow-up observation with KOOLS-IFU mounted on the 3.8-m Seimei telescope at Okayama Observatory of Kyoto University. The spectral resolution is ~ 500, and the wavelength coverage is 4100-8500 A. We took the median of three final spectra produced for each exposure by the KOOLS-IFU Quick Look system.
16422 2024-01-16 01:48:26 Liping Li Liping Li, Qian Zhai, Jujia Zhang (YNAO); Xiaofeng Wang(THU) LiONS SN II 0.031 1 LiONS The spectrum obtained by LJT is consistent with that of a young SN II with flash spectral features. 2024TNSCR.170....1L
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
16509 2024-01-15 17:53:00 Lijiang-2.4m / YFOSC 2200 Jujia Zhang LiONS tns_2024acn_2024-01-15_17-52-59.986_Lijiang-2.4m_YFOSC_LiONS.dat Object

Comments

TNS
System

Sun, 12/22/2024 - 17:58

Object coordinates updated

Object coordinates updated according to AT-report 200374 of Group Pan-STARRS
Previous RA, DEC: 11:10:40.461, +21:06:27.25 (167.6685865, +21.1075686)
Updated RA, DEC: 11:10:40.441, +21:06:26.87 (167.668505874, 21.1074646977)

TNS
System

Sun, 12/22/2024 - 17:58

Object coordinates updated

Object coordinates updated according to AT-report 199771 of Group ZTF
Previous RA, DEC: 11:10:40.448, +21:06:26.91 (167.668534545, +21.1074745455)
Updated RA, DEC: 11:10:40.461, +21:06:27.25 (167.6685865, 21.1075686)

TNS
System

Sun, 12/22/2024 - 17:58

Object coordinates updated

Object coordinates updated according to AT-report 199748 of Group ATLAS
Previous RA, DEC: 11:10:40.430, +21:06:27.76 (167.668458, +21.107711)
Updated RA, DEC: 11:10:40.448, +21:06:26.91 (167.668534545, 21.1074745455)