2023ocx | Transient Name Server

RA/DEC (2000)

17:16:48.681 +47:55:10.84

259.2028383 +47.9196771849

Type

SN Ia-CSM

Redshift

0.076

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2023-07-20 05:24:00.000

TNS AT

Y

Public

Y

Discovery Mag

20.24

Filter

g-ZTF

Reporter/s

C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration

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
	15762	2023-09-19 00:00:00	NOT / ALFOSC		NOT staff		YSE	tns_2023ocx_2023-09-19_NOT_ALFOSC_YSE.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

r-ZTF

P48_ZTF-Cam

2023-07-18 08:51:22 - 2023-07-28 06:25:55

2460143.869 - 2460153.768

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
354769	2023-07-28 06:25:55	2460153.768	19.78			ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF
354767	2023-07-18 08:51:22	2460143.869			20.58	ABMag	r-ZTF	P48_ZTF-Cam	30	ZTF	[Last non detection]

g-ZTF

P48_ZTF-Cam

2023-07-20 05:24:00 - 2023-07-20 05:24:00

2460145.725 - 2460145.725

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
354768	2023-07-20 05:24:00	2460145.725	20.24			ABMag	g-ZTF	P48_ZTF-Cam	30	ZTF

orange-ATLAS

ATLAS-HKO_ATLAS-02

2023-08-04 08:46:33 - 2023-08-04 08:46:33

2460160.86566 - 2460160.86566

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
365836	2023-08-04 08:46:33	2460160.86566			19.16	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot	[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2023-08-06 07:43:20 - 2023-08-06 07:43:20

2460162.82176 - 2460162.82176

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
365837	2023-08-06 07:43:20	2460162.82176	19.262	0.136	19.73	ABMag	cyan-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot

i-P1

PS1_GPC1

2023-10-01 05:37:57 - 2023-10-01 05:37:57

2460218.73469 - 2460218.73469

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
366185	2023-10-01 05:37:57	2460218.73469	19.4	0.23	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
189482	2023-10-02 12:29:16	PS1_Bot1	K. C. Chambers, T. de Boer, J. Bulger et al.	Pan-STARRS	Pan-STARRS	17:16:48.681	+47:55:10.84	2023-10-01 05:37:57.216	19.4	i-P1		PSN		PS23ivn	Pan-STARRS				N
189267	2023-09-27 23:08:26	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	17:16:48.693	+47:55:10.80	2023-08-06 07:43:20.064	19.262	cyan-ATLAS		PSN		ATLAS23tga	ATLAS				N
183389	2023-07-28 09:25:13	ZTF_Bot1	C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration	ZTF	ZTF	17:16:48.677	+47:55:10.41	2023-07-20 05:24:00.000	20.24	g-ZTF		PSN		ZTF23aatabje	ZTF			2023TNSTR1800....1F	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

15677

2023-10-02 12:46:03

Charlotte Angus

C. Angus, P. Aleo

YSE

SN Ia-CSM

0.076

1

YSE

Spectrum taken with ALFOSC/NOT in gr4 on 19/09/2023. Spectrum matches templates of late time (>+20d) SNe Ia, with H emission superimposed. z=0.076 found from host galaxy lines. The prolonged peak of the light curve post-max in r-band (plateauing for ~30 days), combined with the H-alpha emission suggest a Ia-CSM classification. Template comparisons were done using superfit and SNID.

2023TNSCR2467....1A

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
15762	2023-09-19 00:00:00	NOT / ALFOSC		NOT staff		YSE	tns_2023ocx_2023-09-19_NOT_ALFOSC_YSE.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 189482 of Group Pan-STARRS
Previous RA, DEC: 17:16:48.677, +47:55:10.41 (259.2028215, +47.9195575)
Updated RA, DEC: 17:16:48.681, +47:55:10.84 (259.2028383, 47.9196771849)

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