2018L | Transient Name Server

RA/DEC (2000)

10:23:09.290 +57:02:35.16

155.788708 +57.0431

Type

SN Ia

Redshift

0.029

Discovery Report Classification Report

Reporting Group

POSS

Discovering Data Source

POSS

Discovery Date

2018-01-03 11:21:08.000

TNS AT

Y

Public

Y

Host Name

NGC3214

Host Redshift

0.02582

Discovery Mag

17.6

Filter

Clear-

Reporter/s

R. Gagliano, R. Post, E. Weinberg, J. Newton, T. Puckett

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

Gaia_Gaia-photometric_G

▌

ATLAS-HKO_ATLAS-02_orange

▌

PS1_GPC1_i

▌

Other_Other_Clear

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
	1614	2018-01-07 00:32:37	Other / Other	3608	R Leadbeater	R Leadbeater	None	tns_2018L_2018-01-07_00-32-37_Other_Other.dat	tns_2018L_2018-01-07_00-32-37_Other_Other.fit	Object			R~150 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm
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 R~150 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

G-Gaia

Gaia_Gaia-photometric

2017-11-16 17:02:24 - 2017-12-25 20:15:21

2458074.21 - 2458113.3439931

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
24401	2017-12-25 20:15:21	2458113.3439931	20.24	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
24400	2017-11-16 17:02:24	2458074.21			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2017-12-25 15:02:52 - 2017-12-29 13:39:21

2458113.1269907 - 2458117.0689931

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
24374	2017-12-29 13:39:21	2458117.0689931	18.516	0.143	19.67	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
24373	2017-12-25 15:02:52	2458113.1269907			19.73	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot	[Last non detection]

i-P1

PS1_GPC1

2018-01-07 13:14:52 - 2018-01-07 13:14:52

2458126.0519907 - 2458126.0519907

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
24560	2018-01-07 13:14:52	2458126.0519907	17.05	0.02	20.7	ABMag	i-P1	PS1_GPC1	45	Robot

Clear-

Other_Other

2017-12-11 12:24:15 - 2018-01-03 11:21:08

2458099.0168519 - 2458121.9730208

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
24358	2018-01-03 11:21:08	2458121.9730208	17.6	0.2	20	ABMag	Clear-	Other_Other	30	R Post	610cm CDK with Apogee U230 at Mayhill, NM
24357	2017-12-11 12:24:15	2458099.0168519			20	ABMag	Clear-	Other_Other	30	R Post	[Last non detection] 610cm CDK with Apogee U230 at Mayhill, NM

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
16368	2018-01-09 19:25:09	PS1_Bot1	K. C. Chambers, M. E. Huber, H. Flewelling et al.	Pan-STARRS	Pan-STARRS	10:23:09.291	+57:02:35.17	2018-01-07 13:14:52.000	17.05	i-P1		PSN		PS18co	Pan-STARRS				N
16240	2018-01-06 09:19:09	Gaia_Bot1	A. Delgado, D. Harrison, S. Hodgkin et al.	GaiaAlerts	GaiaAlerts	10:23:09.290	+57:02:35.16	2017-12-25 20:15:21.000	20.24	G-Gaia		PSN		Gaia18abk	GaiaAlerts		candidate SN in outskirts of galaxy NGC 3214, GS-TEC predicts SN Ia, aka AT 2018L		N
16226	2018-01-04 13:40:02	ATLAS_Bot1	J. Tonry, B. Stalder, L. Denneau et al.	ATLAS	ATLAS	10:23:09.275	+57:02:35.30	2017-12-29 13:39:21.000	18.516	orange-ATLAS		PSN		ATLAS17nzp	ATLAS				N
16218	2018-01-03 19:37:20	Richard S Post	R. Gagliano, R. Post, E. Weinberg et al.	POSS	POSS	10:23:09.240	+57:02:34.90	2018-01-03 11:21:08.000	17.6	Clear-		PSN	NGC3214		POSS			2018TNSTR...8....1G	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

1610

2018-01-07 02:01:10

Robin Leadbeater

Robin Leadbeater

None

SN Ia

0.029

1

1

Classification using SNID ( Blondin, S. & Tonry, J. L. 2007. ApJ, 666, 1024) gives a good fit to several normal type Ia supernovae a few days pre maximum.

2018TNSCR..26....1L

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2018L_classrep_1610.ps	SNID best match	2018-01-07 02:01:10	Robin Leadbeater

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
1614	2018-01-07 00:32:37	Other / Other	3608	R Leadbeater	R Leadbeater	None	tns_2018L_2018-01-07_00-32-37_Other_Other.dat	tns_2018L_2018-01-07_00-32-37_Other_Other.fit	Object			R~150 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm

Comments

Object coordinates updated

Object coordinates updated according to AT-report 16240 of Group GaiaAlerts
Previous RA, DEC: 10:23:09.240, +57:02:34.90 (155.7885, +57.043028)
Updated RA, DEC: 10:23:09.290, +57:02:35.16 (155.788708, 57.0431)

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