2025ymx | Transient Name Server

RA/DEC (2000)

22:27:35.066 +29:43:52.00

336.896107069 +29.7311119598

Type

SN Ia

Redshift

0.064

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-09-23 07:14:27.000

TNS AT

Y

Public

Y

Discovery Mag

20.8773

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
	22188	2025-10-12 00:53:28	LT / SPRAT		Jacob Wise, Daniel Perley, K-Ryan Hinds, Zoe McGrath	Jacob Wise	ZTF	tns_2025ymx_2025-10-12_00-53-28.001_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-N_GOTO-2

2025-09-07 21:54:33 - 2025-10-02 21:49:43

2460926.412885 - 2460951.409516

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
522136	2025-10-02 21:49:43	2460951.409516	18.27	0.07		ABMag	L-GOTO	GOTO-N_GOTO-2	180
522135	2025-09-07 21:54:33	2460926.412885			18.3	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

i-P1

PS2_GPC2

2025-10-03 07:28:39 - 2025-10-03 07:28:39

2460951.81156 - 2460951.81156

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
522164	2025-10-03 07:28:39	2460951.81156	18.58	0.05	20.7	ABMag	i-P1	PS2_GPC2	27	Robot

r-ZTF

P48_ZTF-Cam

2025-09-23 05:12:47 - 2025-09-25 06:00:32

2460941.7172106 - 2460943.7503704

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
519872	2025-09-25 06:00:32	2460943.7503704	19.7881	0.139129		ABMag	r-ZTF	P48_ZTF-Cam
519870	2025-09-23 05:12:47	2460941.7172106			19.2911	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-09-23 07:14:27 - 2025-09-23 07:14:27

2460941.8017014 - 2460941.8017014

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
519871	2025-09-23 07:14:27	2460941.8017014	20.8773	0.180031		ABMag	g-ZTF	P48_ZTF-Cam

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2025-09-23 09:32:15 - 2025-09-25 09:10:08

2460941.8974 - 2460943.88204

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
520307	2025-09-25 09:10:08	2460943.88204	19.394	0.18	19.48	ABMag	cyan-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
520306	2025-09-23 09:32:15	2460941.8974			19.4	ABMag	cyan-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	ADS Bibcode	Unreal	Auto classification
272450	2025-10-03 19:14:44	YSE_Bot1	D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al.	YSE	Pan-STARRS	22:27:35.066	+29:43:52.00	2025-10-03 07:28:38.784	18.58	i-P1		PSN		PS25hst	Pan-STARRS				N
272432	2025-10-03 17:33:17	GOTO_bot	D. O'Neill,K. Ackley,M. Dyer et al.	GOTO	GOTO	22:27:35.072	+29:43:52.20	2025-10-02 21:49:42.528	18.27	L-GOTO		Other		GOTO25ifs	GOTO				N
271463	2025-09-26 16:01:44	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	22:27:35.082	+29:43:52.24	2025-09-25 09:10:08.256	19.394	cyan-ATLAS		PSN		ATLAS25maj	ATLAS				N
271272	2025-09-25 07:21:00	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	22:27:35.062	+29:43:51.98	2025-09-23 07:14:27.000	20.8773	g-ZTF		PSN		ZTF25absvroj	ZTF			2025TNSTR3862....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

22188

2025-10-12 01:57:36

Jacob Wise

Jacob Wise (LJMU), Daniel Perley (LJMU), K-Ryan Hinds (Caltech), Zoe McGrath (LJMU)

ZTF

SN Ia

0.064

1

ZTF

Spectrum displays Si II absorption and Fe features in the blue characteristic of a SN Ia. Redshift of z = 0.064 from host H-alpha emission.

2025TNSCR4094....1W

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
22188	2025-10-12 00:53:28	LT / SPRAT		Jacob Wise, Daniel Perley, K-Ryan Hinds, Zoe McGrath	Jacob Wise	ZTF	tns_2025ymx_2025-10-12_00-53-28.001_LT_SPRAT_ZTF.spec		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 272450 of Group Pan-STARRS
Previous RA, DEC: 22:27:35.062, +29:43:51.98 (336.8960909, +29.7311049)
Updated RA, DEC: 22:27:35.066, +29:43:52.00 (336.896107069, +29.7311119598)

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