2018kpo | Transient Name Server

RA/DEC (2000)

03:40:43.070 -06:25:23.95

55.179458 -6.423319

Type

SN II

Redshift

0.01749

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2018-12-24 08:55:40.000

TNS AT

Public

Discovery Mag

18.274

Filter

orange-ATLAS

Reporter/s

J. 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, K. Maguire, S. J. Prentice, O. McBrien, D. O'Neill, P. Clark, M. Magee, M. Fulton, A. McCormack (Queen's University Belfast), D. E. Wright (University of Minnesota)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)

Spectra

Select	ID	Obs-date (UT)	Tel / Inst	Exp-Time	Observer/s	Reducer/s	Group	Spectrum ascii file	Spec. Type	Remarks
	3331	2018-12-30 01:53:55	P60 / SEDM	1200	SEDM-Robot	auto	ZTF	tns_2018kpo_2018-12-30_01-53-55_P60_SEDM_ZTF.ascii	Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s Remarks
	3321	2018-12-25 00:00:00	LT / SPRAT	900	S. Prentice, K. Maguire	S. Prentice	None	tns_2018kpo_2018-12-25_LT_SPRAT.txt	Object	Preliminary reduction
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s Remarks Preliminary reduction

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

r-ZTF

P48_ZTF-Cam

2018-12-04 06:01:52 - 2018-12-29 07:34:19

2458456.7513 - 2458481.8154977

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
51345	2018-12-29 07:34:19	2458481.8154977	17.41	0.05	19.72	ABMag	r-ZTF	P48_ZTF-Cam	30
49596	2018-12-29 07:34:19	2458481.8154977	17.41	0.05	19.72	ABMag	r-ZTF	P48_ZTF-Cam	30
50259	2018-12-29 07:34:19	2458481.8154977	17.41	0.05	19.72	ABMag	r-ZTF	P48_ZTF-Cam	30
50287	2018-12-29 07:34:19	2458481.8154977	17.41	0.05	19.72	ABMag	r-ZTF	P48_ZTF-Cam	30
48927	2018-12-29 07:33:36	2458481.815	17.41			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF
48925	2018-12-23 07:01:55	2458475.7929977			19.31	ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF	[Last non detection]
49594	2018-12-04 06:01:52	2458456.7513			20.12	ABMag	r-ZTF	P48_ZTF-Cam	30		[Last non detection]
50258	2018-12-04 06:01:52	2458456.7513			20.12	ABMag	r-ZTF	P48_ZTF-Cam	30		[Last non detection]
50286	2018-12-04 06:01:52	2458456.7513			20.12	ABMag	r-ZTF	P48_ZTF-Cam	30		[Last non detection]
51343	2018-12-04 06:01:52	2458456.7513			20.12	ABMag	r-ZTF	P48_ZTF-Cam	30		[Last non detection]

g-ZTF

P48_ZTF-Cam

2018-12-29 06:20:04 - 2019-01-12 04:31:50

2458481.7639352 - 2458495.6887847

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s
51344	2019-01-12 04:31:50	2458495.6887847	17.5	0.06	19.72	ABMag	g-ZTF	P48_ZTF-Cam	30
50260	2019-01-04 04:10:04	2458487.6736574	17.35	0.04	20.47	ABMag	g-ZTF	P48_ZTF-Cam	30
48926	2018-12-29 06:20:09	2458481.7639931	17.35			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF
49595	2018-12-29 06:20:04	2458481.7639352	17.35	0.04	20.07	ABMag	g-ZTF	P48_ZTF-Cam	30
50288	2018-12-29 06:20:04	2458481.7639352	17.35	0.04	20.07	ABMag	g-ZTF	P48_ZTF-Cam	30

G-Gaia

Gaia_Gaia-photometric

2018-12-23 13:04:48 - 2019-02-04 12:31:40

2458476.045 - 2458519.0219907

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
53147	2019-02-04 12:31:40	2458519.0219907	17.61	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
53146	2018-12-23 13:04:48	2458476.045			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2018-12-23 09:51:50 - 2019-01-21 08:23:59

2458475.9109954 - 2458504.8499884

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
51957	2019-01-21 08:23:59	2458504.8499884	17.31	0.095	18.13	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot
51956	2019-01-20 07:56:38	2458503.8309954			18.36	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]
48033	2018-12-24 08:55:40	2458476.8719907	18.274	0.125	18.65	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot
48032	2018-12-23 09:51:50	2458475.9109954			18.38	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

w-P1

PS1_GPC1

2019-01-08 06:50:23 - 2019-01-08 06:50:23

2458491.7849884 - 2458491.7849884

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
66350	2019-01-08 06:50:23	2458491.7849884	17.36	0.01	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	AT Type	Internal name	Assoc. Groups	Remarks	ADS Bibcode	Unreal
35293	2019-05-17 09:35:03	PS1_Bot1	K. C. Chambers,T. de Boer,J. Bulger et al.	Pan-STARRS	Pan-STARRS	03:40:43.066	-06:25:23.84	2019-01-08 06:50:23.000	17.36	w-P1	PSN	PS19ahu	Pan-STARRS			N
29633	2019-02-05 23:44:07	Gaia_Bot1	A. Delgado,D. Harrison,S. Hodgkin et al.	GaiaAlerts	GaiaAlerts	03:40:43.070	-06:25:23.95	2019-02-04 12:31:40.000	17.61	G-Gaia	PSN	Gaia19alp	GaiaAlerts	confirmed SN II		N
29043	2019-01-21 12:29:54	ATLAS_Bot1	J. Tonry,L. Denneau,A. Heinze et al.	ATLAS	ATLAS	03:40:43.116	-06:25:23.99	2019-01-21 08:23:59.000	17.31	orange-ATLAS	PSN	ATLAS19bsm	ATLAS			N
28760	2019-01-12 07:34:54	ZTF_AMPEL_NEW	J. Nordin,V. Brinnel,M. Giomi et al.	ZTF	ZTF	03:40:43.064	-06:25:23.96	2018-12-29 07:34:19.000	17.5	g-ZTF	PSN	ZTF18adbclkd	ZTF			N
28300	2019-01-08 08:32:10	ZTF_AMPEL_NEW	J. Nordin,V. Brinnel,M. Giomi et al.	ZTF	ZTF	03:40:43.065	-06:25:24.07	2018-12-29 06:20:04.000	17.41	r-ZTF	PSN	ZTF18adbclkd	ZTF			N
28289	2019-01-08 08:27:24	ZTF_AMPEL_NEW	J. Nordin,V. Brinnel,M. Giomi et al.	ZTF	ZTF	03:40:43.065	-06:25:24.07	2018-12-29 07:34:19.000	17.41	r-ZTF	PSN	ZTF18adbclkd	ZTF			N
27921	2019-01-04 07:43:34	ZTF_AMPEL_NEW	J. Nordin,V. Brinnel,M. Giomi et al.	ZTF	ZTF	03:40:43.067	-06:25:23.97	2018-12-29 06:20:04.000	17.35	g-ZTF	PSN	ZTF18adbclkd	ZTF			N
27594	2018-12-30 22:38:25	ZTF_Bot1	C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration et al.	ZTF	ZTF	03:40:43.065	-06:25:24.07	2018-12-29 06:20:09.000	17.35	g-ZTF	PSN	ZTF18adbclkd	ZTF			N
27119	2018-12-24 16:07:04	ATLAS_Bot1	J. Tonry,L. Denneau,A. Heinze et al.	ATLAS	ATLAS	03:40:43.054	-06:25:24.14	2018-12-24 08:55:40.000	18.274	orange-ATLAS	PSN	ATLAS18bcde	ATLAS		2018TNSTR1971....1T	N

Classification Reports

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

3323

2018-12-30 20:27:58

ZTF_Bot1

C. Fremling (Caltech), Y. Sharma (IIT Bombay), A. Dugas (Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SN II

0.01749

ZTF

2018TNSCR2188....1F

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
3331	2018-12-30 01:53:55	P60 / SEDM	1200	SEDM-Robot	auto	ZTF	tns_2018kpo_2018-12-30_01-53-55_P60_SEDM_ZTF.ascii		Object

3313

2018-12-26 23:43:03

Stephen Smartt

Simon Prentice (QUB), Stephen Smartt (QUB), Kate Maguire (QUB)

None

SN II

0.017

ATLAS

Spectrum taken with SPRAT on the Liverpool Telescope 2018-12-25 21:06:40 UT. Broad, shallow emission line with a peak at 6638 Angs. If we assume this transient is at the host redshift of v=5248 km/s or z=0.017505, then this is likely to be H-alpha but is blue shifted from rest by 1700 km/s. This is often observed in early type II spectra (Anderson et al. 2014,MNRAS,441,671). The width of the line is 13,000 km/s and the blackbody temperature is around 12000K. This is very likely a young type II SN.

2018TNSCR1985....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
3321	2018-12-25 00:00:00	LT / SPRAT	900	S. Prentice, K. Maguire	S. Prentice	None	tns_2018kpo_2018-12-25_LT_SPRAT.txt		Object			Preliminary reduction

Comments

Object coordinates updated

Object coordinates updated according to AT-report 29633 of Group GaiaAlerts
Previous RA, DEC: 03:40:43.054, -06:25:24.14 (55.17939, -6.42337090909)
Updated RA, DEC: 03:40:43.070, -06:25:23.95 (55.179458, -6.423319)

SN 2018kpo

Spectra

Light curves

Comments

Object coordinates updated