2025yxr | Transient Name Server

RA/DEC (2000)

18:43:39.936 +66:07:55.68

280.9164015 +66.1321338

Type

SN Ia

Redshift

0.083

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-09-30 06:31:28.704

TNS AT

Y

Public

Y

Discovery Mag

18.598

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill, P. J. Broda (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)

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
	22168	2025-10-07 04:58:43	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025yxr_2025-10-07_04-58-42.560912_P60_SEDM_ZTF.ascii		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

wide-ATLAS

ATLAS-TDO_ATLAS-05

2025-09-27 22:34:32 - 2025-09-27 22:34:32

2460946.44065 - 2460946.44065

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
520960	2025-09-27 22:34:32	2460946.44065			19.89	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-09-29 21:11:42 - 2025-09-29 21:11:42

2460948.383134 - 2460948.383134

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
520965	2025-09-29 21:11:42	2460948.383134	18.81	0.11		ABMag	L-GOTO	GOTO-N_GOTO-2	180

L-GOTO

GOTO-N_GOTO-1

2025-07-27 00:13:44 - 2025-07-27 00:13:44

2460883.509541 - 2460883.509541

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
520964	2025-07-27 00:13:44	2460883.509541			19.8	ABMag	L-GOTO	GOTO-N_GOTO-1	360		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-10-03 03:57:13 - 2025-10-03 03:57:13

2460951.6647338 - 2460951.6647338

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
522016	2025-10-03 03:57:13	2460951.6647338	18.4121	0.0985497		ABMag	r-ZTF	P48_ZTF-Cam

g-ZTF

P48_ZTF-Cam

2025-09-16 07:44:01 - 2025-10-01 03:15:48

2460934.8222338 - 2460949.6359722

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
522015	2025-10-01 03:15:48	2460949.6359722	18.5994	0.0755009		ABMag	g-ZTF	P48_ZTF-Cam
522014	2025-09-16 07:44:01	2460934.8222338			20.0678	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-09-30 06:31:29 - 2025-09-30 06:31:29

2460948.77186 - 2460948.77186

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
520961	2025-09-30 06:31:29	2460948.77186	18.598	0.126	19.23	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
272386	2025-10-03 07:40:14	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	18:43:39.936	+66:07:55.68	2025-10-01 03:15:47.998	18.5994	g-ZTF		PSN		ZTF25abuqjvk	ZTF				N
271805	2025-09-30 09:47:29	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	18:43:39.987	+66:07:55.55	2025-09-29 21:11:42.432	18.81	L-GOTO		Other		GOTO25iby	GOTO				N
271803	2025-09-30 09:38:09	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	18:43:39.801	+66:07:55.61	2025-09-30 06:31:28.704	18.598	orange-ATLAS		PSN		ATLAS25mff	ATLAS			2025TNSTR3924....1T	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

22168

2025-10-07 05:51:08

ZTF_Bot1

C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore

ZTF

SN Ia

0.083

1

ZTF

2025TNSCR4036....1F

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
22168	2025-10-07 04:58:43	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025yxr_2025-10-07_04-58-42.560912_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 272386 of Group ZTF
Previous RA, DEC: 18:43:39.801, +66:07:55.61 (280.915836667, +66.1321133333)
Updated RA, DEC: 18:43:39.936, +66:07:55.68 (280.9164015, +66.1321338)

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