2023txu | Transient Name Server

RA/DEC (2000)

18:33:11.520 +66:57:29.74

278.298 +66.958261

Type

SN Ia

Redshift

0.023

Discovery Report Classification Report

Related AstroNotes: 2023-259, 2023-264

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2023-10-03 06:53:42.720

TNS AT

Y

Public

Y

Discovery Mag

18.957

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, S. Srivastav, D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng (Queen's University Belfast), A. Aamer (QUB/Birmingham), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

P48_ZTF-Cam_g_

▌

Gaia_Gaia-photometric_G_

▌

ATLAS-HKO_ATLAS-02_orange_

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
	15871	2023-10-16 18:56:00	Other / Other	1800	Claudio Balcon	Claudio Balcon	None	tns_2023txu_2023-10-16_18-56-00_Other_Other.dat	tns_2023txu_2023-10-16_18-56-00_Other_Other.fit	Object			We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.
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 We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.
	15874	2023-10-16 18:52:09	Ekar / AFOSC	1800	A. Reguitti	A. Reguitti	Padova-Asiago	tns_2023txu_2023-10-16_18-52-09_Ekar_AFOSC_Padova-Asiago.ascii		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-ZTF

P48_ZTF-Cam

2023-12-07 02:57:07 - 2023-12-07 02:57:07

2460285.623 - 2460285.623

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
377385	2023-12-07 02:57:07	2460285.623	19.55			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF
377386	2023-12-07 02:57:07	2460285.623	19.55			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF

G-Gaia

Gaia_Gaia-photometric

2023-08-27 22:10:34 - 2023-10-02 19:43:41

2460184.424 - 2460220.322

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
366589	2023-10-02 19:43:41	2460220.322	18.95	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
366588	2023-08-27 22:10:34	2460184.424			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2023-10-01 07:36:57 - 2023-10-03 06:53:43

2460218.81733 - 2460220.7873

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
366252	2023-10-03 06:53:43	2460220.7873	18.957	0.191	19.09	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
366251	2023-10-01 07:36:57	2460218.81733			18.66	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	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	Bibcode	Unreal	Auto classification
195297	2023-12-07 09:34:42	ZTF_Bot1	C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration et al.	ZTF	ZTF	18:33:11.520	+66:57:29.71	2023-12-07 02:57:07.200	19.55	g-ZTF		PSN		ZTF23abmsmzq	ZTF				N
189732	2023-10-05 08:40:30	Gaia_Bot1	S.T. Hodgkin,E. Breedt,A. Delgado et al.	GaiaAlerts	GaiaAlerts	18:33:11.520	+66:57:29.74	2023-10-02 19:43:40.800	18.95	G-Gaia		PSN		Gaia23ctg	GaiaAlerts		candidate SN near galaxy NGC 6676		N
189526	2023-10-03 11:11:27	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	18:33:11.601	+66:57:30.04	2023-10-03 06:53:42.720	18.957	orange-ATLAS		PSN		ATLAS23tma	ATLAS			2023TNSTR2469....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

15788

2023-10-17 09:21:41

Andrea Reguitti

Andrea Reguitti

Padova-Asiago

SN Ia

0.023

1

Padova-Asiago

Normal SN Ia around peak.

2023TNSCR2633....1R

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
15874	2023-10-16 18:52:09	Ekar / AFOSC	1800	A. Reguitti	A. Reguitti	Padova-Asiago	tns_2023txu_2023-10-16_18-52-09_Ekar_AFOSC_Padova-Asiago.ascii		Object

15785

2023-10-16 19:23:46

Claudio Balcon

Claudio Balcon (Belluno A.O. ISSP)

None

SN Ia

0.022676

1

GELATO (Harutyunyan et al., 2008, A&A, 488, 383) suggests that this spectrum resembles that of a type Ia supernova a few days before maximum at the redshift of the host galaxy (value from NED).

2023TNSCR2616....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
15871	2023-10-16 18:56:00	Other / Other	1800	Claudio Balcon	Claudio Balcon	None	tns_2023txu_2023-10-16_18-56-00_Other_Other.dat	tns_2023txu_2023-10-16_18-56-00_Other_Other.fit	Object			We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 189732 of Group GaiaAlerts
Previous RA, DEC: 18:33:11.601, +66:57:30.04 (278.298336667, +66.9583433333)
Updated RA, DEC: 18:33:11.520, +66:57:29.74 (278.298, 66.958261)

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