2018gqd | Transient Name Server

RA/DEC (2000)

16:42:05.470 +31:31:57.40

250.522792 +31.532611

Type

SN I

Redshift

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2018-09-18 05:49:55.000

TNS AT

Y

Public

Y

Discovery Mag

18.346

Filter

orange-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

▌

Gaia_Gaia-photometric_G

▌

ATLAS-MLO_ATLAS-01_orange

▌

ATLAS-HKO_ATLAS-02_orange

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
	2820	2018-09-24 21:45:07	LT / SPRAT	800	S. Prentice		None	tns_2018gqd_2018-09-24_21-45-07_LT_SPRAT.txt		Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), ▌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

G-Gaia

Gaia_Gaia-photometric

2018-08-17 11:49:55 - 2018-09-17 11:29:45

2458347.9929977 - 2458378.9789931

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
37743	2018-09-17 11:29:45	2458378.9789931	18.51	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
37742	2018-08-17 11:49:55	2458347.9929977			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2018-09-16 06:30:14 - 2018-09-16 06:30:14

2458377.7709954 - 2458377.7709954

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
36278	2018-09-16 06:30:14	2458377.7709954			19.01	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2018-09-18 05:49:55 - 2018-09-18 05:49:55

2458379.7429977 - 2458379.7429977

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
36279	2018-09-18 05:49:55	2458379.7429977	18.346	0.065	19.33	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	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
23620	2018-10-16 15:38:16	Gaia_Bot1	A. Delgado,D. Harrison,S. Hodgkin et al.	GaiaAlerts	GaiaAlerts	16:42:05.470	+31:31:57.40	2018-09-17 11:29:45.000	18.51	G-Gaia		PSN		Gaia18dax	GaiaAlerts		confirmed SN I, aka SN 2018gqd		N
22930	2018-09-18 17:40:20	ATLAS_Bot1	J. Tonry,B. Stalder,L. Denneau et al.	ATLAS	ATLAS	16:42:05.467	+31:31:57.25	2018-09-18 05:49:55.000	18.346	orange-ATLAS		PSN		ATLAS18vlh	ATLAS			2018TNSTR1406....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

2813

2018-09-27 08:34:15

Simon Prentice

S. J. Prentice, M. R. Magee (QUB)

None

SN I

1

This object is of ambiguous classification. Using SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) we found matches to SNe Ib at z~0.02 and SNe Ia at z~0.045, both shortly after maximum light.

2018TNSCR1457....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
2820	2018-09-24 21:45:07	LT / SPRAT	800	S. Prentice		None	tns_2018gqd_2018-09-24_21-45-07_LT_SPRAT.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 23620 of Group GaiaAlerts
Previous RA, DEC: 16:42:05.467, +31:31:57.25 (250.522779167, +31.5325683333)
Updated RA, DEC: 16:42:05.470, +31:31:57.40 (250.522792, 31.532611)

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