2025accb | Transient Name Server

RA/DEC (2000)

19:27:18.570 +47:59:09.69

291.82737325556 +47.986024788889

Type

SN Ia

Redshift

0.08

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-10-30 02:52:30.002

TNS AT

Y

Public

Y

Discovery Mag

20.0335

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

▌

ATLAS-TDO_ATLAS-05_wide

▌

GOTO-N_GOTO-2_L

▌

P48_ZTF-Cam_g

▌

ATLAS-MLO_ATLAS-01_orange

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
	22368	2025-11-07 03:46:18	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025accb_2025-11-07_03-46-17.942412_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

2025-11-08 20:14:12 - 2025-11-08 20:14:12

2460988.34319 - 2460988.34319

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
530463	2025-11-08 20:14:12	2460988.34319			18.51	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-10-26 21:45:43 - 2025-12-03 19:18:41

2460975.40675 - 2461013.304637

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
535955	2025-12-03 19:18:41	2461013.304637	18.88	0.2		ABMag	L-GOTO	GOTO-N_GOTO-2	180
535954	2025-10-26 21:45:43	2460975.40675			20	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-10-28 04:18:50 - 2025-11-01 03:43:12

2460976.6797454 - 2460980.655

5

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
528259	2025-11-01 03:43:12	2460980.655	19.5767	0.196741		ABMag	g-ZTF	P48_ZTF-Cam
528258	2025-10-30 02:52:30	2460978.6197917	20.0335	0.153878		ABMag	g-ZTF	P48_ZTF-Cam
530392	2025-10-30 02:52:30	2460978.6197917	20.0754	0.262645	19.9486	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
528257	2025-10-28 04:18:50	2460976.6797454			20.0279	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]
530391	2025-10-28 04:18:50	2460976.6797454			19.4984	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-11-11 05:17:03 - 2025-11-11 05:17:03

2460990.72017 - 2460990.72017

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
530464	2025-11-11 05:17:03	2460990.72017	18.853	0.168	19.19	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
279322	2025-12-04 10:45:32	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	19:27:18.683	+47:59:08.98	2025-12-03 19:18:40.896	18.88	L-GOTO		Other		GOTO25lab	GOTO				N
276409	2025-11-12 10:33:03	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	19:27:18.570	+47:59:09.47	2025-11-11 05:17:02.688	18.853	orange-ATLAS		PSN		ATLAS25obu	ATLAS				N
276374	2025-11-11 19:16:13	Fink	Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker	Fink	ZTF	19:27:18.570	+47:59:09.69	2025-10-30 02:52:30.003	20.0754	g-ZTF		PSN		ZTF25acbypmg	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25acbypmg		N
275415	2025-11-01 05:56:55	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	19:27:18.577	+47:59:09.70	2025-10-30 02:52:30.002	20.0335	g-ZTF		PSN		ZTF25acbypmg	ZTF			2025TNSTR4400....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

22367

2025-11-07 06:09:44

ZTF_Bot1

J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SN Ia

0.08

1

ZTF

2025TNSCR4472....1S

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
22368	2025-11-07 03:46:18	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025accb_2025-11-07_03-46-17.942412_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 276374 of Group ZTF
Previous RA, DEC: 19:27:18.577, +47:59:09.70 (291.827403, +47.986028)
Updated RA, DEC: 19:27:18.570, +47:59:09.69 (291.82737325556, +47.986024788889)

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