2018fsa | Transient Name Server

RA/DEC (2000)

22:25:37.050 -13:04:30.32

336.404375 -13.075089

Type

SN Ia

Redshift

0.043

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2018-09-03 04:33:36.000

TNS AT

Y

Public

Y

Discovery Mag

17.6

Filter

V-Johnson

Reporter/s

K. Z. Stanek, for the ASAS-SN team

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

Gaia_Gaia-photometric_G

▌

ATLAS-MLO_ATLAS-01_orange

▌

ASASSN-2_Cassius_V

▌

ASASSN-1_Brutus_V

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
	2677	2018-09-07 00:59:22	LT / SPRAT	500	S. Prentice		None	tns_2018fsa_2018-09-07_00-59-22_LT_SPRAT.txt		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

G-Gaia

Gaia_Gaia-photometric

2018-05-31 21:05:45 - 2018-10-18 08:16:47

2458270.3789931 - 2458409.8449884

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
37859	2018-10-18 08:16:47	2458409.8449884	18.62	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
37858	2018-05-31 21:05:45	2458270.3789931			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2018-08-21 12:10:04 - 2018-08-30 11:47:02

2458352.0069907 - 2458360.9909954

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
34895	2018-08-30 11:47:02	2458360.9909954	18.472	0.136	18.71	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot
34894	2018-08-21 12:10:04	2458352.0069907			18.93	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

V-Johnson

ASASSN-2_Cassius

2018-09-03 04:33:36 - 2018-09-03 04:33:36

2458364.69 - 2458364.69

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
34889	2018-09-03 04:33:36	2458364.69	17.6			VegaMag	V-Johnson	ASASSN-2_Cassius

V-Johnson

ASASSN-1_Brutus

2018-08-30 10:19:12 - 2018-08-30 10:19:12

2458360.93 - 2458360.93

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
34888	2018-08-30 10:19:12	2458360.93			17.6	VegaMag	V-Johnson	ASASSN-1_Brutus			[Last non detection]

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
23679	2018-10-21 21:04:58	Gaia_Bot1	A. Delgado,D. Harrison,S. Hodgkin et al.	GaiaAlerts	GaiaAlerts	22:25:37.050	-13:04:30.32	2018-10-18 08:16:47.000	18.62	G-Gaia		PSN		Gaia18dcf	GaiaAlerts		confirmed SN Ia, aka SN 2018fsa		N
22154	2018-09-03 23:02:34	ATLAS_Bot1	J. Tonry,B. Stalder,L. Denneau et al.	ATLAS	ATLAS	22:25:37.048	-13:04:30.26	2018-08-30 11:47:02.000	18.472	orange-ATLAS		PSN		ATLAS18uew	ATLAS				N
22151	2018-09-03 16:15:57	Krzysztof Stanek	K. Z. Stanek,for the ASAS-SN team et al.	ASAS-SN	ASAS-SN	22:25:37.106	-13:04:28.27	2018-09-03 04:33:36.000	17.6	V-Johnson		PSN		ASASSN-18ts	ASAS-SN		In several epochs, near a faint, uncatalogued galaxy seen in PS1 images	2018TNSTR1283....1S	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

2670

2018-09-07 10:08:19

Simon Prentice

S. J. Prentice, P. Clark, K. Maguire (QUB)

None

SN Ia

0.043

1

SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) finds similarity to normal type Ia SN 2004fu a day before B-band maximum.

2018TNSCR1323....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
2677	2018-09-07 00:59:22	LT / SPRAT	500	S. Prentice		None	tns_2018fsa_2018-09-07_00-59-22_LT_SPRAT.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 23679 of Group GaiaAlerts
Previous RA, DEC: 22:25:37.106, -13:04:28.27 (336.40461, -13.07452)
Updated RA, DEC: 22:25:37.050, -13:04:30.32 (336.404375, -13.075089)

Log in or register to post comments

Finding Chart

http://www.astronomy.ohio-state.edu/~assassin/followup/asassn-18ts.png

Log in or register to post comments

Log in or register to post comments