2025nk | Transient Name Server

RA/DEC (2000)

12:10:25.659 +46:59:16.36

182.606913901 +46.987878783

Type

SN Ia

Redshift

0.06

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-01-16 07:06:58.999

TNS AT

Y

Public

Y

Discovery Mag

19.3609

Filter

r-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
	20332	2025-02-07 02:34:21	LT / SPRAT	1200	J.H. Terwel	J.H. Terwel	TCD	tns_2025nk_2025-02-07_02-34-21_LT_SPRAT_TCD.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

Clear-

LAST_LAST-Cam

2024-03-05 23:00:06 - 2025-01-24 02:29:40

2460375.4584 - 2460699.60394

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
464310	2025-01-24 02:29:40	2460699.60394	18.18			ABMag	Clear-	LAST_LAST-Cam	400
464309	2024-03-05 23:00:06	2460375.4584			20.56	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

i-P1

PS2_GPC2

2025-01-16 12:57:14 - 2025-01-16 12:57:14

2460692.03975 - 2460692.03975

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
464189	2025-01-16 12:57:14	2460692.03975	19.78	0.21	20.7	ABMag	i-P1	PS2_GPC2	45	Robot

r-ZTF

P48_ZTF-Cam

2025-01-15 11:51:26 - 2025-01-16 07:06:59

2460690.9940509 - 2460691.7965162

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
462439	2025-01-16 07:06:59	2460691.7965162	19.3609	0.236815		ABMag	r-ZTF	P48_ZTF-Cam
462438	2025-01-15 11:51:26	2460690.9940509			19.4853	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-01-16 10:18:44 - 2025-01-16 10:18:44

2460691.9296759 - 2460691.9296759

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
462440	2025-01-16 10:18:44	2460691.9296759	19.5054	0.199405		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-01-20 10:45:14 - 2025-01-22 09:33:11

2460695.94808 - 2460697.89804

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
463973	2025-01-22 09:33:11	2460697.89804	18.625	0.137	19.27	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
463972	2025-01-20 10:45:14	2460695.94808			19.06	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
242280	2025-01-24 12:01:22	LAST_Bot1	R. Konno (WIS),E. Zimmerman (WIS),A. Horowicz (WIS) et al.	LAST	LAST	12:10:25.785	+46:59:16.96	2025-01-24 02:29:40.416	18.18	Clear-		PSN			LAST				N
242229	2025-01-23 23:49:05	PS1_Bot1	K. C. Chambers,T. de Boer,J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	12:10:25.659	+46:59:16.36	2025-01-16 12:57:14.400	19.78	i-P1		PSN		PS25ii	Pan-STARRS				N
242041	2025-01-22 19:40:17	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	12:10:25.677	+46:59:16.40	2025-01-22 09:33:10.656	18.625	orange-ATLAS		PSN		ATLAS25asf	ATLAS				N
241181	2025-01-16 12:49:20	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	12:10:25.690	+46:59:16.52	2025-01-16 07:06:58.999	19.3609	r-ZTF		PSN		ZTF25aacasop	ZTF			2025TNSTR.211....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

20332

2025-02-07 10:20:59

Jacco Terwel

J.H. Terwel, U. Burgaz, K. Maguire, R. Seth, C. O'Donnell, T.E. Müller-Bravo, C.G. Touchard-Paxton

TCD

SN Ia

0.06

1

TCD

2025TNSCR.531....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
20332	2025-02-07 02:34:21	LT / SPRAT	1200	J.H. Terwel	J.H. Terwel	TCD	tns_2025nk_2025-02-07_02-34-21_LT_SPRAT_TCD.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 242229 of Group Pan-STARRS
Previous RA, DEC: 12:10:25.690, +46:59:16.52 (182.6070437, +46.9879225)
Updated RA, DEC: 12:10:25.659, +46:59:16.36 (182.606913901, 46.987878783)

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