2025nff | Transient Name Server

RA/DEC (2000)

21:04:58.938 -03:32:29.65

316.2455759 -3.5415706444444

Type

SN Ia

Redshift

0.083

Discovery Report Classification Report

Related AstroNotes: 2025-182

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-06-08 08:52:58.998

TNS AT

Y

Public

Y

Discovery Mag

19.5784

Filter

r-ZTF

Reporter/s

Daniel Perley (LJMU), Christoffer Fremling (Caltech), 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
	21295	2025-06-13 00:00:00	UH88 / SNIFS		C. Angus		SCAT	tns_2025nff_2025-06-13_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

L-GOTO

GOTO-N_GOTO-2

2025-06-10 02:44:53 - 2025-06-10 02:44:53

2460836.614502 - 2460836.614502

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
496072	2025-06-10 02:44:53	2460836.614502			18.6	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

orange-ATLAS

ATLAS-STH_ATLAS-03

2025-06-16 23:32:47 - 2025-06-16 23:32:47

2460843.4811 - 2460843.4811

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
496315	2025-06-16 23:32:47	2460843.4811			18.54	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

L-GOTO

GOTO-N_GOTO-1

2025-06-18 00:55:38 - 2025-06-18 00:55:38

2460844.538642 - 2460844.538642

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
496073	2025-06-18 00:55:38	2460844.538642	18.67	0.11		ABMag	L-GOTO	GOTO-N_GOTO-1	360

r-ZTF

P48_ZTF-Cam

2025-06-05 09:58:13 - 2025-06-08 08:52:59

2460831.9154282 - 2460834.8701273

4

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
494447	2025-06-08 08:52:59	2460834.8701273	19.5784	0.182249		ABMag	r-ZTF	P48_ZTF-Cam
496008	2025-06-07 09:27:53	2460833.8943634	19.403	0.123101	20.1067	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
494446	2025-06-05 09:58:13	2460831.9154282			20.6557	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]
496007	2025-06-05 09:58:13	2460831.9154282			20.6557	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

g-ZTF

P48_ZTF-Cam

2025-06-09 10:32:41 - 2025-06-09 10:32:41

2460835.9393634 - 2460835.9393634

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
494448	2025-06-09 10:32:41	2460835.9393634	19.2004	0.128537		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-06-18 11:52:10 - 2025-06-18 11:52:10

2460844.99456 - 2460844.99456

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
496316	2025-06-18 11:52:10	2460844.99456	18.53	0.132	19.14	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	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
259112	2025-06-19 09:34:26	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	21:04:58.922	-03:32:29.83	2025-06-18 11:52:09.984	18.53	orange-ATLAS		PSN		ATLAS25gfl	ATLAS				N
259012	2025-06-18 08:56:28	GOTO_bot	D. O'Neill,G. Ramsay,K. Ackley et al.	GOTO	GOTO	21:04:58.975	-03:32:29.81	2025-06-18 00:55:38.496	18.67	L-GOTO		Other		GOTO25dqw	GOTO				N
258973	2025-06-17 18:16:37	Fink	Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al.	Fink	ZTF	21:04:58.938	-03:32:29.65	2025-06-07 09:27:52.998	19.403	r-ZTF		PSN		ZTF25aauhbwo	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aauhbwo		N
258135	2025-06-10 17:54:03	Fritz	Daniel Perley (LJMU),Christoffer Fremling (Caltech),Theophile du Laz (Caltech) on behalf of ZTF et al.	ZTF	ZTF	21:04:58.934	-03:32:29.50	2025-06-08 08:52:58.998	19.5784	r-ZTF		PSN		ZTF25aauhbwo	ZTF			2025TNSTR2173....1P	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

21295

2025-06-13 14:35:29

Charlotte Angus

C. Angus (QUB) on behalf of SCAT

SCAT

SN Ia

0.083

1

SCAT

Spectrum taken with UH88/SNIFS on 13/06/2025. Template matches to SNe Ia, redshift from host galaxy H-alpha emission in the spectrum. Classification was done using SNID

2025TNSCR2209....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
21295	2025-06-13 00:00:00	UH88 / SNIFS		C. Angus		SCAT	tns_2025nff_2025-06-13_UH88_SNIFS_SCAT.dat		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 258973 of Group ZTF
Previous RA, DEC: 21:04:58.934, -03:32:29.50 (316.2455578, -3.5415275)
Updated RA, DEC: 21:04:58.938, -03:32:29.65 (316.2455759, -3.5415706444444)

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