2025ad | Transient Name Server

RA/DEC (2000)

11:41:42.783 +08:10:49.87

175.428262677 +8.18051914746

Type

SN Ic-BL

Redshift

0.08

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-01-01 11:36:18.996

TNS AT

Y

Public

Y

Discovery Mag

19.3678

Filter

g-ZTF

Reporter/s

Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF

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
	20211	2025-01-20 04:41:25	LT / SPRAT		Daniel Perley, Jacob Wise, K-Ryan Hinds, Zoe McGrath	Jacob Wise	ZTF	tns_2025ad_2025-01-20_04-41-25.217_LT_SPRAT_ZTF.spec		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

L-GOTO

GOTO-S_GOTO-3

2024-12-28 17:14:12 - 2024-12-28 17:14:12

2460673.218185 - 2460673.218185

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
461212	2024-12-28 17:14:12	2460673.218185			19.8	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

w-P1

PS2_GPC2

2025-01-01 15:24:20 - 2025-01-01 15:24:20

2460677.1419 - 2460677.1419

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
461019	2025-01-01 15:24:20	2460677.1419	19.22	0.04	22	ABMag	w-P1	PS2_GPC2	45	Robot

cyan-ATLAS

ATLAS-STH_ATLAS-03

2025-01-02 01:06:50 - 2025-01-02 01:06:50

2460677.54641 - 2460677.54641

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
460876	2025-01-02 01:06:50	2460677.54641			19.48	ABMag	cyan-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

L-GOTO

GOTO-N_GOTO-1

2025-01-06 02:28:36 - 2025-01-06 02:28:36

2460681.603201 - 2460681.603201

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
461213	2025-01-06 02:28:36	2460681.603201	18.8	0.12		ABMag	L-GOTO	GOTO-N_GOTO-1	180

g-ZTF

P48_ZTF-Cam

2025-01-01 11:35:38 - 2025-01-03 09:35:58

2460676.9830787 - 2460678.8999769

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
460644	2025-01-03 09:35:58	2460678.8999769	19.1448	0.178164		ABMag	g-ZTF	P48_ZTF-Cam
460643	2025-01-01 11:36:19	2460676.9835532	19.3678	0.192477		ABMag	g-ZTF	P48_ZTF-Cam
460642	2025-01-01 11:35:38	2460676.9830787			19.1846	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-01-03 14:31:49 - 2025-01-03 14:31:49

2460679.10543 - 2460679.10543

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
460877	2025-01-03 14:31:49	2460679.10543	18.518	0.15	19.49	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	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
240599	2025-01-06 14:39:50	GOTO_bot	A. Kumar,D. O'Neill,K. Ackley et al.	GOTO	GOTO	11:41:42.818	+08:10:49.91	2025-01-06 02:28:36.480	18.8	L-GOTO		Other		GOTO25ct	GOTO				N
240505	2025-01-05 17:43:32	PS1_Bot1	K. C. Chambers,T. de Boer,J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	11:41:42.783	+08:10:49.87	2025-01-01 15:24:20.160	19.22	w-P1		PSN		PS25ag	Pan-STARRS				N
240439	2025-01-04 16:58:59	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	11:41:42.804	+08:10:49.82	2025-01-03 14:31:49.152	18.518	orange-ATLAS		PSN		ATLAS25aei	ATLAS				N
240340	2025-01-03 13:33:01	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	11:41:42.796	+08:10:49.96	2025-01-01 11:36:18.996	19.3678	g-ZTF		PSN		ZTF25aaaeykb	ZTF			2025TNSTR..36....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

20211

2025-01-20 15:12:37

Jacob Wise

Jacob Wise (LJMU), Daniel Perley (LJMU), K-Ryan Hinds (LJMU), Zoe McGrath (LJMU), Jesper Sollerman (OKC), Yu-Jing Qin (Caltech)

ZTF

SN Ic-BL

0.08

1

ZTF

Spectrum is well fit by template spectra from previously classified SN Ic-BL at a redshift of z = 0.08 ± 0.01. Classification performed using Next Generation Superfit (NGSF, Goldwasser et al. 2022).

2025TNSCR.280....1W

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025ad_atrep_20211_ZTF.pdf	NGSF fits	2025-01-20 15:12:37	Jacob Wise

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
20211	2025-01-20 04:41:25	LT / SPRAT		Daniel Perley, Jacob Wise, K-Ryan Hinds, Zoe McGrath	Jacob Wise	ZTF	tns_2025ad_2025-01-20_04-41-25.217_LT_SPRAT_ZTF.spec		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 240505 of Group Pan-STARRS
Previous RA, DEC: 11:41:42.796, +08:10:49.96 (175.4283168, +8.1805456)
Updated RA, DEC: 11:41:42.783, +08:10:49.87 (175.428262677, 8.18051914746)

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