SN 2020enm
RA/DEC (2000)
16:35:06.750 +46:12:53.35
248.778125 +46.214819
Type
SN Ia-91T-like
Redshift
0.03076
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2020-03-16 21:55:17.000
TNS AT
Y
Public
Y
Host Name
IC 1222
Discovery Mag
17.7
Filter
Clear-
Reporter/s
Guoyou Sun and Xing Gao

Spectra

 SN_2020enm - 2020-03-18 19:26:24 Lijiang-2.4m / YFOSC (None)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He II 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 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 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)
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
64092020-03-18 19:26:24Lijiang-2.4m / YFOSC1500Jujia Zhang (YNAO)None tns_2020enm_2020-03-18.81_Lijiang-2.4m_YFOSC.datObject
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2019-09-20 15:17:43 - 2020-03-16 21:55:172
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1252552020-03-16 21:55:1717.719VegaMagClear-Other_Other40Guoyou Sun and Xing GaoGuoyou Sun and Xing Gao, report the discovery of a possible supernova (mag approximately 17.7) on several 40-s survey images (limiting mag about 19.0) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Mar. 16.91339 UT using a unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The transient approximately located at R.A.=16h35m06.76s +46d12'53".8 (equinox 2000.0). Which is about 25.2" west and 3.7" north of the center of the IC1222. Nothing is visible at this position on archival images taken on Sep. 20.63730 UT, 2019(limiting mag 19.0). NET UCAC-4 XMPGS1 C2020 03 16.91339 16 35 06.76 +46 12 53.8 17.7 V C42. All images can be seen from: http://xjltp.china-vo.org/XMPGS1.html. C42, Xingming Observatory, Mt. Nanshan. Observers Guoyou Sun and Xing Gao Measurer G.Sun 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD.
1252542019-09-20 15:17:4319VegaMagClear-Other_Other40Guoyou Sun and Xing Gao[Last non detection] using a unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ).
i-SloanPS1_GPC12020-05-05 10:52:19 - 2020-05-05 10:52:191
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1353902020-05-05 10:52:1917.910.0320.7ABMagi-SloanPS1_GPC145Robot
w-PS1PS1_GPC12020-04-30 13:52:19 - 2020-04-30 13:52:191
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1345732020-04-30 13:52:1917.850.0222ABMagw-PS1PS1_GPC145Robot
cyan-ATLASATLAS1_ACAM12020-03-24 13:59:31 - 2020-03-24 13:59:311
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1259532020-03-24 13:59:3116.6510.0219.7ABMagcyan-ATLASATLAS1_ACAM130Robot
orange-ATLASATLAS1_ACAM12020-03-10 14:54:14 - 2020-03-10 14:54:141
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1259522020-03-10 14:54:1418.95ABMagorange-ATLASATLAS1_ACAM130Robot[Last non detection]
G-GaiaGaia_Gaia-photometric2020-02-27 14:18:14 - 2020-04-01 07:59:312
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1276062020-04-01 07:59:3116.720.2ABMagG-GaiaGaia_Gaia-photometric60Robot
1276052020-02-27 14:18:1421.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
g-ZTFP48_ZTF-Cam2020-03-28 11:28:27 - 2020-03-28 11:36:583
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1261902020-03-28 11:36:5816.52ABMagg-ZTFP48_ZTF-Cam30ZTF
1264772020-03-28 11:28:2716.510.0320.96ABMagg-ZTFP48_ZTF-Cam30
1280172020-03-28 11:28:2716.510.0320.96ABMagg-ZTFP48_ZTF-Cam30
r-ZTFP48_ZTF-Cam2020-03-06 12:47:06 - 2020-03-31 11:49:559
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1273642020-03-31 11:49:5516.51ABMagr-ZTFP48_ZTF-Cam30ZTF
1264762020-03-28 10:41:1916.550.0320.73ABMagr-ZTFP48_ZTF-Cam30
1280162020-03-28 10:41:1916.550.0320.73ABMagr-ZTFP48_ZTF-Cam30
1273632020-03-28 10:40:4816.55ABMagr-ZTFP48_ZTF-Cam30ZTF
1261892020-03-28 10:40:4816.55ABMagr-ZTFP48_ZTF-Cam30ZTF
1273622020-03-06 12:47:3120.77ABMagr-ZTFP48_ZTF-Cam30ZTF[Last non detection]
1261882020-03-06 12:47:3120.77ABMagr-ZTFP48_ZTF-Cam30ZTF[Last non detection]
1264752020-03-06 12:47:0620.7678ABMagr-ZTFP48_ZTF-Cam30[Last non detection]
1280152020-03-06 12:47:0620.7678ABMagr-ZTFP48_ZTF-Cam30[Last non detection]
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
700482020-05-09 16:10:18PS2_Bot1K. C. Chambers, T. de Boer, J. Bulger, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA, University of Hawaii), K. W. Smith, D. R. Young, O. McBrien, J. Gillanders. S. Srivastav, S. J. Smartt, D. O'Neill, P. Clark, S. Sim (Queen's University Belfast), D. E. Wright (University of Minnesota)Pan-STARRS1Pan-STARRS116:35:06.746+46:12:53.402020-05-05 10:52:19.20017.91i-SloanPSNPS20cqsPan-STARRS1
696452020-05-02 16:42:10PS1_Bot1K. C. Chambers, T. de Boer, J. Bulger, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA, University of Hawaii), K. W. Smith, D. R. Young, O. McBrien, J. Gillanders. S. Srivastav, S. J. Smartt, D. O'Neill, P. Clark, S. Sim (Queen's University Belfast), D. E. Wright (University of Minnesota)Pan-STARRS1Pan-STARRS116:35:06.745+46:12:53.412020-04-30 13:52:19.20017.85w-PS1PSNPS20cqsPan-STARRS1
660092020-04-04 11:56:43ZTF_AMPEL_COMPLETEJ. Nordin, V. Brinnel, M. Giomi, J. van Santen (HU Berlin), A. Gal-Yam, O. Yaron, S. Schulze (Weizmann) on behalf of ZTFZTFZTF16:35:06.750+46:12:53.412020-03-28 10:41:19.10416.55r-ZTFPSNZTF20aattsxaZTFSee arXiv:1904.05922 for selection criteria.
658292020-04-03 09:42:43Gaia_Bot1S.T. Hodgkin, E. Breedt, A. Delgado, D.L. Harrison, M. van Leeuwen, G. Rixon, T. Wevers, A. Yoldas (IoA Cambridge), N. Ihanec, K. Kruszyńska, K.A. Rybicki, Ł. Wyrzykowski (Warsaw University Astronomical Observatory), Z. Kostrzewa-Rutkowska (Leiden Observatory), D. Eappachen (SRON/RU), G. Marton (Konkoly Observatory), on behalf of the Gaia Alerts teamGaiaAlertsGaiaAlerts16:35:06.750+46:12:53.352020-04-01 07:59:31.20016.72G-GaiaPSNGaia20bowGaiaAlertsconfirmed SN Ia-91T-like in galaxy IC 1222
657282020-03-31 19:38:33ZTF_TESSC. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaborationZTFZTF16:35:06.750+46:12:53.402020-03-28 10:40:48.00016.55r-ZTFPSNZTF20aattsxaZTF
653552020-03-29 19:41:24ZTF_AMPEL_NEWJ. Nordin, V. Brinnel, M. Giomi, J. van Santen (HU Berlin), A. Gal-Yam, O. Yaron, S. Schulze (Weizmann) on behalf of ZTFZTFZTF16:35:06.747+46:12:53.402020-03-28 10:41:19.10416.55r-ZTFPSNZTF20aattsxaZTFSee arXiv:1904.05922 for selection criteria.
651742020-03-28 20:45:14ZTF_Bot1C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaborationZTFZTF16:35:06.750+46:12:53.402020-03-28 10:40:48.00016.55r-ZTFPSNZTF20aattsxaZTF
649612020-03-25 10:44:15ATLAS_Bot1J. Tonry, L. Denneau, A. Heinze, H. Weiland, H. Flewelling (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, D. O'Neill, P. Clark, M. Fulton, J. Gillanders, M. Dobson (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)ATLASATLAS16:35:06.739+46:12:53.412020-03-24 13:59:31.20016.651cyan-ATLASPSNATLAS20iyaATLAS
645502020-03-17 03:33:56sammimasGuoyou Sun and Xing GaoXOSSXOSS16:35:06.760+46:12:53.802020-03-16 21:55:17.00017.7Clear-PSNXMPGS1XOSSGuoyou Sun and Xing Gao, report the discovery of a possible supernova (mag approximately 17.7) on several 40-s survey images (limiting mag about 19.0) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Mar. 16.91339 UT using a unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The transient approximately located at R.A.=16h35m06.76s +46d12'53".8 (equinox 2000.0). Which is about 25.2" west and 3.7" north of the center of the IC1222. Nothing is visible at this position on archival images taken on Sep. 20.63730 UT, 2019(limiting mag 19.0). NET UCAC-4 XMPGS1 C2020 03 16.91339 16 35 06.76 +46 12 53.8 17.7 V C42. All images can be seen from: http://xjltp.china-vo.org/XMPGS1.html. C42, Xingming Observatory, Mt. Nanshan. Observers Guoyou Sun and Xing Gao Measurer G.Sun 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD.
Related files
FileFile TypeCommentsLast Modified (UT)Modified By
tns_2020enm_atrep_64550.pngGraphicsDiscovery Image2020-03-17 03:50:30sammimas
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
64002020-03-19 01:12:35jujiaJujia Zhang (YNAO), Xiaofeng Wang (THU)NoneSN Ia-91T-like0.03076The spectrum matches the 91T/99aa-like events a few days before the peak, e.g., SN 1998es at t=-9 days, via GELATO (Harutyunyan et al. 2008, A&A, 488, 383).2020TNSCR.831....1Z

Comments

2020enm was measured as g(SDSS) = 19.20 (+/- 0.09) on UT 2020 May 08 (08:15:00, 540-sec exp). 1.82-m Plaskett Telescope (National Research Council of Canada)

2020enm was measured as g(SDSS) = 19.36 (+/- 0.09) on UT 2020 May 07 (11:05:00, 540-sec exposure) using the 1.82-m Plaskett telescope (National Research Council of Canada)

Object coordinates updated according to AT-report 65829 of Group GaiaAlerts
Previous RA, DEC: 16:35:06.750, +46:12:53.40 (248.7781232, +46.2148324)
Updated RA, DEC: 16:35:06.750, +46:12:53.35 (248.778125, 46.214819)

Object coordinates updated according to AT-report 65728 of Group ZTF
Previous RA, DEC: 16:35:06.747, +46:12:53.40 (248.778113525, +46.214832175)
Updated RA, DEC: 16:35:06.750, +46:12:53.40 (248.7781232, 46.2148324)

Object coordinates updated according to AT-report 65355 of Group ZTF
Previous RA, DEC: 16:35:06.750, +46:12:53.40 (248.7781232, +46.2148324)
Updated RA, DEC: 16:35:06.747, +46:12:53.40 (248.778113525, 46.214832175)

Object coordinates updated according to AT-report 65174 of Group ZTF
Previous RA, DEC: 16:35:06.739, +46:12:53.41 (248.7780775, +46.2148375)
Updated RA, DEC: 16:35:06.750, +46:12:53.40 (248.7781232, 46.2148324)

Object coordinates updated according to AT-report 64961 of Group ATLAS
Previous RA, DEC: 16:35:06.760, +46:12:53.80 (248.778167, +46.214944)
Updated RA, DEC: 16:35:06.739, +46:12:53.41 (248.7780775, 46.2148375)