2018dhw | Transient Name Server

RA/DEC (2000)

18:59:57.560 +72:16:02.32

284.989835376 +72.2673112347

Type

SN Ia

Redshift

0.0323

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2018-07-09 11:48:28.000

TNS AT

Y

Public

Y

Discovery Mag

19.616

Filter

cyan-ATLAS

Reporter/s

J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), A. Rest (STScI), K. W. Smith, S. J. Smartt, D. R. Young, M. Fulton, O. McBrien, D. O'Neill, P. Clark (Queen's University Belfast)

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	Spectrum fits file	Spec. Type	Assoc. Groups	End prop. period	Remarks
	2291	2018-07-19 12:13:45	FTN / FLOYDS-N	2700	Las Cumbres Observatory	Jamison Burke	Global SN Project	tns_2018dhw_2018-07-19_12-13-45_FTN_FLOYDS-N_Global_SN_Project.ascii	tns_2018dhw_2018-07-19_12-13-45_FTN_FLOYDS-N_Global_SN_Project.fits	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
	4476	2018-07-08 10:49:31	P200 / DBSP	1200	A. Ho	A. Ho	ZTF	tns_2018dhw_2018-07-08_10-49-31_P200_DBSP_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

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

r-ZTF

P48_ZTF-Cam

2018-07-15 10:20:38 - 2018-07-15 10:20:38

2458314.9309954 - 2458314.9309954

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
32205	2018-07-15 10:20:38	2458314.9309954	17.32			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF

g-ZTF

P48_ZTF-Cam

2018-07-06 10:48:00 - 2018-07-12 08:25:26

2458305.95 - 2458311.8509954

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
32204	2018-07-12 08:25:26	2458311.8509954	18.1			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF
32203	2018-07-06 10:48:00	2458305.95			20.05	ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2018-07-03 11:06:43 - 2018-07-03 11:06:43

2458302.9629977 - 2458302.9629977

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
31442	2018-07-03 11:06:43	2458302.9629977			17.4	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2018-07-09 11:48:28 - 2018-07-09 11:48:28

2458308.9919907 - 2458308.9919907

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
31443	2018-07-09 11:48:28	2458308.9919907	19.616	0.181	19.71	ABMag	cyan-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot

i-P1

PS1_GPC1

2018-08-02 08:41:16 - 2018-08-02 08:41:16

2458332.8619907 - 2458332.8619907

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
33558	2018-08-02 08:41:16	2458332.8619907	17.54	0.03	20.7	ABMag	i-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	ADS Bibcode	Unreal	Auto classification
21463	2018-08-11 19:11:05	PS1_Bot1	K. C. Chambers, M. E. Huber, H. Flewelling et al.	Pan-STARRS	Pan-STARRS	18:59:57.560	+72:16:02.32	2018-08-02 08:41:16.000	17.54	i-P1		PSN		PS18bgi	Pan-STARRS				N
20741	2018-07-18 06:50:21	ZTF_Bot1	C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration	ZTF	ZTF	18:59:57.538	+72:16:02.38	2018-07-12 08:25:26.000	18.1	g-ZTF		PSN		ZTF18abfhryc	ZTF				N
20146	2018-07-12 09:46:24	ATLAS_Bot1	J. Tonry, B. Stalder, L. Denneau et al.	ATLAS	ATLAS	18:59:57.521	+72:16:02.15	2018-07-09 11:48:28.000	19.616	cyan-ATLAS		PSN		ATLAS18sak	ATLAS			2018TNSTR.965....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

4469

2019-07-08 22:49:21

ZTF_Bot1

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

ZTF

SN Ia

0.0323

1

ZTF

2019TNSCR2828....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
4476	2018-07-08 10:49:31	P200 / DBSP	1200	A. Ho	A. Ho	ZTF	tns_2018dhw_2018-07-08_10-49-31_P200_DBSP_ZTF.ascii		Object

2284

2018-07-19 21:00:45

Jamison Burke

Jamison Burke, Iair Arcavi, Daichi Hiramatsu, Griffin Hosseinzadeh, D. Andrew Howell, Curtis McCully, Stefano Valenti

Global SN Project

SN Ia

0.029

1

1

Global SN Project

We obtained a FLOYDS spectrum of AT 2018dhw at 2018 July 19.51 UT. Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find several good fits to normal Type Ia SNe around maximum light. The measured value of the redshift (0.029) is obtained from the SNID fit.

2018TNSCR1006....1B

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2018dhw_classrep_2284_Global_SN_Project.ps		2018-07-19 21:00:45	Jamison Burke

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
2291	2018-07-19 12:13:45	FTN / FLOYDS-N	2700	Las Cumbres Observatory	Jamison Burke	Global SN Project	tns_2018dhw_2018-07-19_12-13-45_FTN_FLOYDS-N_Global_SN_Project.ascii	tns_2018dhw_2018-07-19_12-13-45_FTN_FLOYDS-N_Global_SN_Project.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 21463 of Group Pan-STARRS1
Previous RA, DEC: 18:59:57.521, +72:16:02.15 (284.989671364, +72.2672636364)
Updated RA, DEC: 18:59:57.560, +72:16:02.32 (284.989835376, 72.2673112347)

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