2021dvn | Transient Name Server

RA/DEC (2000)

16:15:07.090 +66:49:23.81

243.779542 +66.823281

Type

SN Ia

Redshift

0.08

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2021-02-25 12:54:43.200

TNS AT

Y

Public

Y

Discovery Mag

18.714

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, M. Fulton, J. Gillanders, C. Webb (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

Gaia_Gaia-photometric_G

▌

ATLAS-MLO_ATLAS-01_orange

▌

ATLAS-MLO_ATLAS-01_cyan

▌

PS1_GPC1_i

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
	9144	2021-03-14 05:55:07	LT / SPRAT		S. Prentice		TCD	tns_2021dvn_2459287.74661_LT_SPRAT_TCD.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

2021-01-23 04:37:55 - 2021-02-28 02:00:58

2459237.693 - 2459273.584

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
195162	2021-02-28 02:00:58	2459273.584	18.68	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
195161	2021-01-23 04:37:55	2459237.693			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2021-02-25 12:54:43 - 2021-02-25 12:54:43

2459271.038 - 2459271.038

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
194833	2021-02-25 12:54:43	2459271.038	18.714	0.172	18.87	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot

cyan-ATLAS

ATLAS-MLO_ATLAS-01

2021-02-17 13:50:53 - 2021-02-17 13:50:53

2459263.077 - 2459263.077

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
194832	2021-02-17 13:50:53	2459263.077			19.63	ABMag	cyan-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

i-P1

PS1_GPC1

2021-03-31 14:44:10 - 2021-03-31 14:44:10

2459305.114 - 2459305.114

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
203453	2021-03-31 14:44:10	2459305.114	19.16	0.19	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
105272	2021-04-04 22:20:31	PS1_Bot1	K. C. Chambers, T. de Boer, J. Bulger et al.	Pan-STARRS	Pan-STARRS	16:15:07.102	+66:49:23.84	2021-03-31 14:44:09.600	19.16	i-P1		PSN		PS21cvx	Pan-STARRS		This transient was discovered with the help of citizen science project Supernova Hunters run by Zooniverse. The candidate was identified by volunteers including Henryk Krawczyk, David Maetschke and B L Goodwin		N
100735	2021-03-01 20:09:00	Gaia_Bot1	S.T. Hodgkin, E. Breedt, A. Delgado et al.	GaiaAlerts	GaiaAlerts	16:15:07.090	+66:49:23.81	2021-02-28 02:00:57.600	18.68	G-Gaia		PSN		Gaia21bdj	GaiaAlerts		candidate SN near galaxy LEDA 2691532		N
100520	2021-02-26 19:40:35	ATLAS_Bot1	J. Tonry, L. Denneau, A. Heinze et al.	ATLAS	ATLAS	16:15:07.030	+66:49:23.50	2021-02-25 12:54:43.200	18.714	orange-ATLAS		PSN		ATLAS21gyy	ATLAS			2021TNSTR.611....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

9134

2021-03-14 06:47:15

Simon Prentice

S. Prentice, K. Maguire, M. Magee, M. Deckers, L. Harvey, J. Terwel (TCD)

TCD

SN Ia

0.08

1

TCD

Our Python-based classification tool matches SNe Ia at 7-10 days past maximum at z = 0.080+-0.008.

2021TNSCR.766....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
9144	2021-03-14 05:55:07	LT / SPRAT		S. Prentice		TCD	tns_2021dvn_2459287.74661_LT_SPRAT_TCD.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 100735 of Group GaiaAlerts
Previous RA, DEC: 16:15:07.030, +66:49:23.50 (243.779293333, +66.8231933333)
Updated RA, DEC: 16:15:07.090, +66:49:23.81 (243.779542, 66.823281)

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