2025ahlf | Transient Name Server

RA/DEC (2000)

11:46:03.653 +05:44:17.77

176.515221434 +5.73827009249

Type

SN Ia

Redshift

0.079

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-12-15 13:54:20.998

TNS AT

Y

Public

Y

Discovery Mag

19.3938

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
	22669	2025-12-22 11:00:33	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025ahlf_2025-12-22_11-00-33.400925_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

2025-12-23 03:39:40 - 2025-12-23 03:39:40

2461032.65255 - 2461032.65255

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
542137	2025-12-23 03:39:40	2461032.65255	18.178	0.074	19.61	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot

L-GOTO

GOTO-N_GOTO-2

2025-12-09 05:12:55 - 2025-12-09 05:12:55

2461018.717305 - 2461018.717305

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
540893	2025-12-09 05:12:55	2461018.717305			19.2	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

w-P1

PS2_GPC2

2026-01-18 13:04:39 - 2026-01-18 13:04:39

2461059.0449 - 2461059.0449

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
554940	2026-01-18 13:04:39	2461059.0449	20.02	0.07	22	ABMag	w-P1	PS2_GPC2	45	Robot

L-GOTO

GOTO-N_GOTO-1

2025-12-18 05:17:23 - 2025-12-18 05:17:23

2461027.720408 - 2461027.720408

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
540894	2025-12-18 05:17:23	2461027.720408	18.97	0.1		ABMag	L-GOTO	GOTO-N_GOTO-1	180

r-ZTF

P48_ZTF-Cam

2025-12-15 13:54:21 - 2025-12-18 12:30:40

2461025.0794097 - 2461028.0212963

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
540233	2025-12-18 12:30:40	2461028.0212963	19.2476	0.15585		ABMag	r-ZTF	P48_ZTF-Cam
540232	2025-12-15 13:54:21	2461025.0794097	19.3938	0.12967		ABMag	r-ZTF	P48_ZTF-Cam

g-ZTF

P48_ZTF-Cam

2025-12-08 13:04:44 - 2025-12-08 13:04:44

2461018.0449537 - 2461018.0449537

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
540231	2025-12-08 13:04:44	2461018.0449537			20.2747	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-12-14 13:06:05 - 2025-12-14 13:06:05

2461024.04589 - 2461024.04589

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
542136	2025-12-14 13:06:05	2461024.04589			19.07	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	ADS Bibcode	Unreal	Auto classification
289518	2026-01-31 02:01:38	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	11:46:03.653	+05:44:17.77	2026-01-18 13:04:39.360	20.02	w-P1		PSN		PS26ok	Pan-STARRS				N
282069	2025-12-23 12:51:18	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	11:46:03.636	+05:44:18.02	2025-12-23 03:39:40.320	18.178	wide-ATLAS		PSN		ATLAS25qdn	ATLAS				N
281528	2025-12-20 08:53:12	GOTO_bot	G. Ramsay, K. Ackley, M. Dyer et al.	GOTO	GOTO	11:46:03.663	+05:44:18.00	2025-12-18 05:17:23.424	18.97	L-GOTO		Other		GOTO25mbq	GOTO				N
281216	2025-12-18 13:22:10	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	11:46:03.656	+05:44:17.91	2025-12-15 13:54:20.998	19.3938	r-ZTF		PSN		ZTF25acivwpw	ZTF			2025TNSTR5046....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

22668

2025-12-22 11:54:35

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

0.079

1

ZTF

2025TNSCR5135....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
22669	2025-12-22 11:00:33	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025ahlf_2025-12-22_11-00-33.400925_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 289518 of Group Pan-STARRS
Previous RA, DEC: 11:46:03.656, +05:44:17.91 (176.5152339, +5.7383095)
Updated RA, DEC: 11:46:03.653, +05:44:17.77 (176.515221434, +5.73827009249)

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