2020tef | Transient Name Server

RA/DEC (2000)

05:01:21.580 -27:47:06.14

75.339917 -27.785039

Type

SN I

Redshift

0.05

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2020-09-13 14:09:36.000

TNS AT

Y

Public

Y

Discovery Mag

19.222

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, D. O'Neill, P. Clark, M. Fulton, J. Gillanders, M. Dobson (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO), A. Townsend (University of Manchester)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

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
	7655	2020-10-11 14:18:14	UH88 / SNIFS	2400	A Do		SCAT	tns_2020tef_2459134.096_UH88_SNIFS_SCAT.dat		Object			Reduced with a summit-based quick-reduction pipeline, only blue channel available
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 a summit-based quick-reduction pipeline, only blue channel available

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

r-ZTF

P48_ZTF-Cam

2020-10-02 11:00:58 - 2020-10-04 12:04:19

2459124.959 - 2459127.003

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
161650	2020-10-04 12:04:19	2459127.003	18.62			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF
161648	2020-10-02 11:00:58	2459124.959			19.07	ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF	[Last non detection]

g-ZTF

P48_ZTF-Cam

2020-10-02 11:58:34 - 2020-10-04 11:01:56

2459124.999 - 2459126.9596759

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
162409	2020-10-04 11:01:56	2459126.9596759	18.72	0.18	19.15	ABMag	g-ZTF	P48_ZTF-Cam	30
162408	2020-10-02 11:58:48	2459124.9991667	18.64	0.14	18.95	ABMag	g-ZTF	P48_ZTF-Cam	30
161649	2020-10-02 11:58:34	2459124.999	18.64			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF

G-Gaia

Gaia_Gaia-photometric

2020-08-18 14:42:43 - 2020-09-16 18:43:12

2459080.113 - 2459109.28

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
158660	2020-09-16 18:43:12	2459109.28	18.44	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
158659	2020-08-18 14:42:43	2459080.113			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2020-09-11 14:29:46 - 2020-09-11 14:29:46

2459104.104 - 2459104.104

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
157699	2020-09-11 14:29:46	2459104.104			19.33	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2020-09-13 14:09:36 - 2020-09-13 14:09:36

2459106.09 - 2459106.09

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
157700	2020-09-13 14:09:36	2459106.09	19.222	0.191	19.5	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
84280	2020-10-08 10:42:27	ZTF_AMPEL_COMPLETE	J. Nordin, V. Brinnel, M. Giomi et al.	ZTF	ZTF	05:01:21.579	-27:47:06.16	2020-10-02 11:58:48.288	18.64	g-ZTF		PSN		ZTF20acgkiwo	ZTF		See arXiv:1904.05922 for selection criteria.		N
83937	2020-10-04 20:47:26	ZTF_Bot1	C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration	ZTF	ZTF	05:01:21.582	-27:47:06.22	2020-10-02 11:58:33.600	18.64	g-ZTF		PSN		ZTF20acgkiwo	ZTF				N
82511	2020-09-18 09:46:45	Gaia_Bot1	S.T. Hodgkin, E. Breedt, A. Delgado et al.	GaiaAlerts	GaiaAlerts	05:01:21.580	-27:47:06.14	2020-09-16 18:43:12.000	18.44	G-Gaia		PSN		Gaia20eji	GaiaAlerts		candidate SN near galaxy LEDA 749908		N
82022	2020-09-14 10:05:02	ATLAS_Bot1	J. Tonry, L. Denneau, A. Heinze et al.	ATLAS	ATLAS	05:01:21.582	-27:47:06.14	2020-09-13 14:09:36.000	19.222	orange-ATLAS		PSN		ATLAS20zyt	ATLAS			2020TNSTR2790....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

7642

2020-10-13 22:32:06

Michael Tucker

M A Tucker (IfA, UH Manoa) on behalf of the SCAT team

SCAT

SN I

0.05

1

SCAT

Likely SN Ia a few weeks after maximum light. Cross-correlation with a template library via SNID (Blondin and Tonry 2007) returns several matches to SNe Ia. However, without confirmation from the SiII6355A feature, post-maximum SN Ibc templates also qualitatively match the spectrum with lower quality results.

2020TNSCR3108....1T

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
7655	2020-10-11 14:18:14	UH88 / SNIFS	2400	A Do		SCAT	tns_2020tef_2459134.096_UH88_SNIFS_SCAT.dat		Object			Reduced with a summit-based quick-reduction pipeline, only blue channel available

Comments

Object coordinates updated

Object coordinates updated according to AT-report 82511 of Group GaiaAlerts
Previous RA, DEC: 05:01:21.582, -27:47:06.14 (75.3399242857, -27.7850385714)
Updated RA, DEC: 05:01:21.580, -27:47:06.14 (75.339917, -27.785039)

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