2023aakt | Transient Name Server

RA/DEC (2000)

01:41:56.980 -58:39:06.70

25.487417 -58.651861

Type

SN Ia

Redshift

0.063

Discovery Report Classification Report

Related AstroNotes: 2023-353

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2023-12-18 02:09:29.088

TNS AT

Y

Public

Y

Discovery Mag

18.646

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt (Oxford/QUB), K. W. Smith, D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, P. Ramsden (Queen's University Belfast), A. Aamer (QUB/Birmingham), L. Shingles (GSI/QUB), S. Srivastav, S. Ramaiya, J. Gillanders, L. Rhodes, A. Andersson, H. Stevance (Oxford), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. Sommer (LMU/QUB)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

ATLAS-CHL_ATLAS-04_orange

▌

ATLAS-STH_ATLAS-03_orange

▌

Gaia_Gaia-photometric_G

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
	16362	2023-12-21 01:33:58	ESO-NTT / EFOSC2-NTT	750	S. Barmentloo, P. Pessi	T. Schweyer	ePESSTO+	tns_2023aakt_2023-12-21_01-33-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2023aakt_2023-12-21_01-33-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	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

orange-ATLAS

ATLAS-CHL_ATLAS-04

2023-12-18 02:09:29 - 2023-12-18 02:09:29

2460296.58992 - 2460296.58992

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
381089	2023-12-18 02:09:29	2460296.58992	18.646	0.125	19.32	ABMag	orange-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot

orange-ATLAS

ATLAS-STH_ATLAS-03

2023-12-15 20:53:54 - 2023-12-15 20:53:54

2460294.37076 - 2460294.37076

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
381088	2023-12-15 20:53:54	2460294.37076			19.45	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

G-Gaia

Gaia_Gaia-photometric

2023-12-08 06:07:12 - 2024-01-01 22:07:41

2460286.755 - 2460311.422

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
383873	2024-01-01 22:07:41	2460311.422	18.3	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
383872	2023-12-08 06:07:12	2460286.755			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[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
198797	2024-01-05 12:32:21	Gaia_Bot1	S.T. Hodgkin, E. Breedt, A. Delgado et al.	GaiaAlerts	GaiaAlerts	01:41:56.980	-58:39:06.70	2024-01-01 22:07:40.800	18.3	G-Gaia		PSN		Gaia24acf	GaiaAlerts		Confirmed SN Ia		N
196835	2023-12-18 11:46:00	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	01:41:57.020	-58:39:06.87	2023-12-18 02:09:29.088	18.646	orange-ATLAS		PSN		ATLAS23xqw	ATLAS			2023TNSTR3305....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

16276

2023-12-21 14:26:01

ePESSTOplus_Bot1

S. Barmentloo, P. Pessi, T. Schweyer, E. A. Zimmerman on behalf of ePESSTO+

ePESSTO+

SN Ia

0.063

1

ePESSTO+

2023TNSCR3339....1B

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
16362	2023-12-21 01:33:58	ESO-NTT / EFOSC2-NTT	750	S. Barmentloo, P. Pessi	T. Schweyer	ePESSTO+	tns_2023aakt_2023-12-21_01-33-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2023aakt_2023-12-21_01-33-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 198797 of Group GaiaAlerts
Previous RA, DEC: 01:41:57.020, -58:39:06.87 (25.48758375, -58.6519075)
Updated RA, DEC: 01:41:56.980, -58:39:06.70 (25.487417, -58.651861)

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