RA/DEC (2000)
03:42:13.078 -27:52:16.46
55.5544902 -27.8712392
Type
SN II
Redshift
0.01368
Discovery ReportClassification Report
Reporting Group
None
Discovering Data Source
None
Discovery Date
2023-01-08 11:03:39.000
TNS AT
Y
Public
Y
Discovery Mag
17.7
Filter
Clear-
Reporter/s
Koichi Itagaki
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2023cr - 2023-01-08 12:04:23 Other / Other (None)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
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▌Show Na at z=vexp= km/s
▌Show Mg 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

 ▌ATLAS-STH_ATLAS-03_orange
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌Other_Other_Clear
   
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
14267 2023-01-08 12:04:23 Other / Other 1515 Miho Kawabata, Kenta Taguchi Kenta Taguchi None tns_2023cr_2023-01-08_12-04-23_Other_Other.dat tns_2023cr_2023-01-08_12-04-23_Other_Other.fits Object We performed the follow-up spectroscopic observation using the KOOLS-IFU attached to the 3.8-m Seimei telescope at Okayama Observatory. The spectral resolution is ~ 500, and the wavelength coverage is 4100-8900 A.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-STH_ATLAS-03 2023-01-06 21:39:23 - 2023-01-07 19:59:00 2459951.40235 - 2459952.33264 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
324120 2023-01-07 19:59:00 2459952.33264 16.855 0.048 18.99 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
324119 2023-01-06 21:39:23 2459951.40235 18.76 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2023-01-13 05:02:24 - 2023-01-13 05:02:24 2459957.71 - 2459957.71 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
324542 2023-01-13 05:02:24 2459957.71 15.56 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
g-ZTF P48_ZTF-Cam 2023-01-09 03:01:26 - 2023-01-13 03:01:26 2459953.626 - 2459957.626 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
324541 2023-01-13 03:01:26 2459957.626 15.48 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
324540 2023-01-09 03:01:26 2459953.626 17.89 ABMag g-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
Clear- Other_Other 2023-01-08 11:03:39 - 2023-01-10 11:33:16 2459952.9608681 - 2459954.9814352 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
324327 2023-01-10 11:33:16 2459954.9814352 15.5 VegaMag Clear- Other_Other Y.Ohshima 0.3ｍ f/4.0 reflecter + f/5.5 extender
324112 2023-01-08 11:03:39 2459952.9608681 17.7 VegaMag Clear- Other_Other 0.5-m F/6.8 + CCD (KAF-1001E)
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
168412 2023-01-13 07:23:15 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 03:42:13.078 -27:52:16.46 2023-01-13 03:01:26.400 15.48 g-ZTF PSN ZTF23aaaifls ZTF N
168293 2023-01-12 07:22:53 Yuuji Ohshima Yuuji Ohshima 03:42:13.090 -27:52:16.70 2023-01-10 11:33:16.000 15.5 Clear- 1 PSN PGC13601 Follow-up observation N
Related files
File Comments Last Modified (UT) Modified By
tns_2023cr_atrep_168293.jpg 2023-01-12 07:22:54 Yuuji Ohshima
168188 2023-01-08 13:13:23 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 03:42:13.072 -27:52:16.60 2023-01-07 19:59:00.096 16.855 orange-ATLAS PSN ATLAS23afj ATLAS N
168184 2023-01-08 11:38:33 Koichi Itagaki Koichi Itagaki 03:42:13.100 -27:52:17.70 2023-01-08 11:03:39.000 17.7 Clear- PSN 2023TNSTR..39....1I N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
14193 2023-01-08 14:54:34 Kenta Taguchi Kenta Taguchi (Kyoto University), Miho Kawabata (Kyoto University) None SN II 0.01368 1 Our spectrum is dominated by a blue continuum. A broad (FWZI ~ 100 A) H beta emission line is seen. H alpha is also seen as an emission line composed of broad (like H beta) and narrow components. Moreover, the He II (4686 A) line was clearly detected. Therefore, we conclude this object is most likely a young SN II. Redshift is from NED. 2023TNSCR..41....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
14267 2023-01-08 12:04:23 Other / Other 1515 Miho Kawabata, Kenta Taguchi Kenta Taguchi None tns_2023cr_2023-01-08_12-04-23_Other_Other.dat tns_2023cr_2023-01-08_12-04-23_Other_Other.fits Object We performed the follow-up spectroscopic observation using the KOOLS-IFU attached to the 3.8-m Seimei telescope at Okayama Observatory. The spectral resolution is ~ 500, and the wavelength coverage is 4100-8900 A.

Comments

TNS
System

Fri, 01/13/2023 - 06:30

Object coordinates updated

Object coordinates updated according to AT-report 168412 of Group ZTF
Previous RA, DEC: 03:42:13.072, -27:52:16.60 (55.5544664286, -27.8712785714)
Updated RA, DEC: 03:42:13.078, -27:52:16.46 (55.5544902, -27.8712392)

Koichi
Itagaki

Sun, 01/08/2023 - 15:34

Magnitude Correction

The magnitude of 17.7 at the time of discovery is incorrect.　The correct value is 16.2.
2023cr.jpg
TNS
System

Sun, 01/08/2023 - 12:30

Object coordinates updated

Object coordinates updated according to AT-report 168188 of Group ATLAS
Previous RA, DEC: 03:42:13.100, -27:52:17.70 (55.554583, -27.871583)
Updated RA, DEC: 03:42:13.072, -27:52:16.60 (55.5544664286, -27.8712785714)