2021czn | Transient Name Server

RA/DEC (2000)

10:48:28.870 +57:54:03.46

162.120292 +57.900961

Type

SN Ia

Redshift

0.073804

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2021-02-11 10:46:33.600

TNS AT

Y

Public

Y

Discovery Mag

19.638

Filter

cyan-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_cyan

▌

ATLAS-HKO_ATLAS-02_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
	9068	2021-02-24 10:59:59	UH88 / SNIFS	2200	M E Huber		SCAT	tns_2021czn_2021-02-24_10-59-59_UH88_SNIFS_SCAT.dat		Object			Reduced with summit-based, quick-reduction pipeline.
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 Reduced with summit-based, quick-reduction pipeline.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

G-Gaia

Gaia_Gaia-photometric

2021-01-16 11:02:24 - 2021-03-03 01:33:36

2459230.96 - 2459276.565

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
195768	2021-03-03 01:33:36	2459276.565	18.41	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
195767	2021-01-16 11:02:24	2459230.96			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

cyan-ATLAS

ATLAS-MLO_ATLAS-01

2021-02-09 11:25:26 - 2021-02-09 11:25:26

2459254.976 - 2459254.976

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
192857	2021-02-09 11:25:26	2459254.976			19.79	ABMag	cyan-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2021-02-11 10:46:34 - 2021-02-11 10:46:34

2459256.949 - 2459256.949

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
192858	2021-02-11 10:46:34	2459256.949	19.638	0.179	19.76	ABMag	cyan-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot

i-P1

PS1_GPC1

2021-04-23 08:22:34 - 2021-04-23 08:22:34

2459327.849 - 2459327.849

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
219048	2021-04-23 08:22:34	2459327.849	20.47	0.25	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
112470	2021-06-06 12:53:15	PS1_Bot1	K. C. Chambers, T. de Boer, J. Bulger et al.	Pan-STARRS	Pan-STARRS	10:48:28.882	+57:54:03.37	2021-04-23 08:22:33.600	20.47	i-P1		PSN		PS21fgq	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 Taylor Herschelman, Christopher Tanner and Shivam Mishra		N
101080	2021-03-04 10:21:26	Gaia_Bot1	S.T. Hodgkin, E. Breedt, A. Delgado et al.	GaiaAlerts	GaiaAlerts	10:48:28.870	+57:54:03.46	2021-03-03 01:33:36.000	18.41	G-Gaia		PSN		Gaia21bem	GaiaAlerts		confirmed SN Ia		N
99580	2021-02-15 16:04:57	ATLAS_Bot1	J. Tonry, L. Denneau, A. Heinze et al.	ATLAS	ATLAS	10:48:28.868	+57:54:03.37	2021-02-11 10:46:33.600	19.638	cyan-ATLAS		PSN		ATLAS21gba	ATLAS			2021TNSTR.470....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

9058

2021-02-24 20:18:44

Mark Huber

M E Huber (IfA, UH Manoa) on behalf of the SCAT team

SCAT

SN Ia

0.073804

1

SCAT

Type Ia SN near maximum light. Classification and age from template cross-correlation with SNID (Blondin and Tonry 2007), redshift from NED for SBS 1045+581.

2021TNSCR.601....1H

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
9068	2021-02-24 10:59:59	UH88 / SNIFS	2200	M E Huber		SCAT	tns_2021czn_2021-02-24_10-59-59_UH88_SNIFS_SCAT.dat		Object			Reduced with summit-based, quick-reduction pipeline.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 101080 of Group GaiaAlerts
Previous RA, DEC: 10:48:28.868, +57:54:03.37 (162.120282, +57.9009373333)
Updated RA, DEC: 10:48:28.870, +57:54:03.46 (162.120292, 57.900961)

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