2023dwu | Transient Name Server

RA/DEC (2000)

09:23:16.908 +72:03:49.20

140.820451 +72.063665766667

Type

SN Ia-91T-like

Redshift

0.012

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2023-03-25 06:28:48.000

TNS AT

Y

Public

Y

Host Name

UGC 04967

Host Redshift

0.012112

Discovery Mag

16.9

Filter

g-Sloan

Reporter/s

K. Z. Stanek, for the ASAS-SN team

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

P48_ZTF-Cam_r

▌

P48_ZTF-Cam_g

▌

ATLAS-HKO_ATLAS-02_orange

▌

ASASSN-1_Brutus_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
	14647	2023-03-27 08:46:00	Keck2 / ESI		K. W. Davis, K. Taggart, R. J. Foley	K. Taggart, R. J. Foley	UCSC	tns_2023dwu_2023-03-27_08-46-00_Keck2_ESI_UCSC.flm		Object			ATel #15963; the spectrum is a blue featureless continuum.
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 ATel #15963; the spectrum is a blue featureless continuum.
	14649	2023-03-27 08:16:10	UH88 / SNIFS	1800	Hoogendam	Hoogendam	SCAT	tns_2023dwu_2023-03-27_08-16-10_UH88_SNIFS_SCAT.dat		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

2023-03-14 09:04:13 - 2023-03-29 05:34:10

2460017.8779282 - 2460032.7320602

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
333913	2023-03-29 05:34:10	2460032.7320602	15.5512	0.0308168	19.6606	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF
333910	2023-03-14 09:04:13	2460017.8779282			18.3648	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF

g-ZTF

P48_ZTF-Cam

2023-03-26 09:25:37 - 2023-03-29 03:59:14

2460029.8927894 - 2460032.6661343

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
333912	2023-03-29 03:59:14	2460032.6661343	15.4023	0.0304044	20.1074	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF
333911	2023-03-26 09:25:37	2460029.8927894	16.2787	0.051587	19.9461	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

orange-ATLAS

ATLAS-HKO_ATLAS-02

2023-04-08 10:05:07 - 2023-04-10 09:00:50

2460042.92022 - 2460044.87558

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
335364	2023-04-10 09:00:50	2460044.87558	14.767	0.012	18.99	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
335363	2023-04-08 10:05:07	2460042.92022			15.35	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot	[Last non detection]

g-Sloan

ASASSN-1_Brutus

2023-03-18 10:04:48 - 2023-03-25 08:09:36

2460021.92 - 2460028.84

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
333274	2023-03-25 08:09:36	2460028.84	16.6			ABMag	g-Sloan	ASASSN-1_Brutus
333273	2023-03-25 06:28:48	2460028.77	16.9			ABMag	g-Sloan	ASASSN-1_Brutus
333272	2023-03-18 10:04:48	2460021.92			18.2	ABMag	g-Sloan	ASASSN-1_Brutus			[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
174058	2023-04-10 12:10:57	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	09:23:16.907	+72:03:49.21	2023-04-10 09:00:50.112	14.767	orange-ATLAS		PSN		ATLAS23hju	ATLAS				N
173283	2023-03-29 21:20:29	ALeRCE	A. Munoz-Arancibia, G. Pignata, F.E. Bauer et al.	ALeRCE	ZTF	09:23:16.908	+72:03:49.20	2023-03-26 09:25:37.004	16.2787	g-ZTF		PSN	UGC 4967	ZTF23aadrume	ALeRCE		Early SN candidate (g-rise > 0.36+-0.00 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF23aadrume		N
172980	2023-03-26 01:36:38	Krzysztof Stanek	K. Z. Stanek, for the ASAS-SN team	ASAS-SN	ASAS-SN	09:23:16.894	+72:03:48.64	2023-03-25 06:28:48.000	16.9	g-Sloan		PSN	UGC 04967	ASASSN-23ca	ASAS-SN		In two epochs, appears to be rising rapidly, nuclear transient, so might also be a TDE	2023TNSTR.632....1S	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

14575

2023-03-27 17:27:15

Michael Tucker

M. A. Tucker (CCAPP/OSU) on behalf of the SCAT team

SCAT

SN Ia-91T-like

0.012

1

SCAT

2023TNSCR.649....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
14649	2023-03-27 08:16:10	UH88 / SNIFS	1800	Hoogendam	Hoogendam	SCAT	tns_2023dwu_2023-03-27_08-16-10_UH88_SNIFS_SCAT.dat		Object

14573

2023-03-27 12:18:12

Kirsty Taggart

K. Taggart, K. W. Davis, R. J. Foley (UCSC)

UCSC

SN

0.012

1

UCSC

2023TNSCR.651....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
14647	2023-03-27 08:46:00	Keck2 / ESI		K. W. Davis, K. Taggart, R. J. Foley	K. Taggart, R. J. Foley	UCSC	tns_2023dwu_2023-03-27_08-46-00_Keck2_ESI_UCSC.flm		Object			ATel #15963; the spectrum is a blue featureless continuum.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 173283 of Group ZTF
Previous RA, DEC: 09:23:16.894, +72:03:48.64 (140.82039, +72.06351)
Updated RA, DEC: 09:23:16.908, +72:03:49.20 (140.82045100000002, 72.06366576666666)

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