RA/DEC (2000)
12:14:07.543 -12:35:16.80
183.531427498 -12.5879993964
Type
SN IIn
Redshift
0.014347
Related AstroNotes: 2021-131, 2021-137
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2021-04-18 10:14:52.800
TNS AT
Y
Public
Y
Discovery Mag
17.145
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, A. Heinze, H. Weiland (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, M. Fulton, J. Gillanders, C. Webb (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)

Spectra

 SN_2021kgj - 2021-04-21 00:27:49 LT / SPRAT (ATLAS)z=
 SN_2021kgj - 2021-04-21 00:27:49 LT / SPRAT (ATLAS)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

 PS2_GPC2_w
 ATLAS-MLO_ATLAS-01_cyan
 ATLAS-HKO_ATLAS-02_orange
 PS1_GPC1_w
   
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
9545 2021-04-21 00:27:49 LT / SPRAT 900 Robotic ATLAS tns_2021kgj_2021-04-21_00-27-48.755_LT_SPRAT_ATLAS_0.dat Object
9527 2021-04-21 00:27:49 LT / SPRAT 900 Robotic ATLAS tns_2021kgj_2021-04-21_00-27-48.755_LT_SPRAT_ATLAS.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2020-04-18 08:32:38 - 2020-04-18 08:32:38 2458957.856 - 2458957.856 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
210102 2020-04-18 08:32:38 2458957.856 18.98 0.09 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-MLO_ATLAS-01 2021-04-08 10:40:48 - 2021-04-08 10:40:48 2459312.945 - 2459312.945 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
208154 2021-04-08 10:40:48 2459312.945 19.9 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2021-04-18 10:14:53 - 2021-04-18 10:14:53 2459322.927 - 2459322.927 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
208155 2021-04-18 10:14:53 2459322.927 17.145 0.04 19.36 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
w-P1 PS1_GPC1 2019-05-01 09:31:41 - 2019-05-01 09:31:41 2458604.897 - 2458604.897 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
208759 2019-05-01 09:31:41 2458604.897 19.41 0.03 22 ABMag w-P1 PS1_GPC1 45 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 Bibcode Unreal Auto classification
108249 2021-05-04 15:45:14 PS2_Bot1 K. C. Chambers,T. de Boer,J. Bulger et al. Pan-STARRS Pan-STARRS 12:14:07.543 -12:35:16.80 2020-04-18 08:32:38.400 18.98 w-P1 PSN PS21dkg Pan-STARRS N
107630 2021-04-25 09:03:54 PS1_Bot1 K. C. Chambers,T. de Boer,J. Bulger et al. Pan-STARRS Pan-STARRS 12:14:07.539 -12:35:16.91 2019-05-01 09:31:40.800 19.41 w-P1 PSN PS21dkg Pan-STARRS N
107375 2021-04-20 13:44:30 ATLAS_Bot1 J. Tonry,L. Denneau,A. Heinze et al. ATLAS ATLAS 12:14:07.560 -12:35:16.89 2021-04-18 10:14:52.800 17.145 orange-ATLAS PSN ATLAS21nak ATLAS 2021TNSTR1286....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
9535 2021-05-02 12:27:40 Shubham Srivastav S. Srivastav, S. J. Smartt, M. Fulton, K. W. Smith, D. R. Young, J. Gillanders ATLAS SN IIn 0.014347 1 ATLAS Narrow Balmer lines present in emission. Evidence of past outbursts in PS1 suggests this could be a 2009ip-like IIn event. Redshift from known host. 2021TNSCR1425....1S
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
9545 2021-04-21 00:27:49 LT / SPRAT 900 Robotic ATLAS tns_2021kgj_2021-04-21_00-27-48.755_LT_SPRAT_ATLAS_0.dat Object
9517 2021-04-26 21:21:36 Shubham Srivastav S. Srivastav, S. J. Smartt, O. McBrien, K. W. Smith, D. R. Young, J. Gillanders ATLAS SN IIn 1 ATLAS Narrow Balmer lines present in emission. Evidence of past outbursts in PS1 suggests this could be a 2009ip-like IIn event. 2021TNSCR1360....1S
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
9527 2021-04-21 00:27:49 LT / SPRAT 900 Robotic ATLAS tns_2021kgj_2021-04-21_00-27-48.755_LT_SPRAT_ATLAS.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 108249 of Group Pan-STARRS1
Previous RA, DEC: 12:14:07.539, -12:35:16.91 (183.531411985, -12.5880303814)
Updated RA, DEC: 12:14:07.543, -12:35:16.80 (183.531427498, -12.5879993964)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 107630 of Group Pan-STARRS1
Previous RA, DEC: 12:14:07.560, -12:35:16.89 (183.5315, -12.588024)
Updated RA, DEC: 12:14:07.539, -12:35:16.91 (183.531411985, -12.5880303814)