2025ahep | Transient Name Server

RA/DEC (2000)

10:00:50.447 +22:18:51.40

150.210196104 +22.31427789

Type

SN II

Redshift

0.023

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-12-17 10:38:07.002

TNS AT

Y

Public

Y

Discovery Mag

17.506

Filter

g-ZTF

Reporter/s

Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (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
	22635	2025-12-18 22:28:26	Lijiang-2.4m / YFOSC		Jujia Zhang		LiONS	tns_2025ahep_2025-12-18_22-28-26.324_Lijiang-2.4m_YFOSC_LiONS.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

2025-12-06 03:33:49 - 2025-12-18 02:00:11

2461015.64848 - 2461027.583458

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
540135	2025-12-18 02:00:11	2461027.583458	17.57	0.03		ABMag	L-GOTO	GOTO-N_GOTO-2	180
540134	2025-12-06 03:33:49	2461015.64848			19	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

w-P1

PS2_GPC2

2025-12-29 10:48:02 - 2025-12-29 10:48:02

2461038.95002 - 2461038.95002

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
546946	2025-12-29 10:48:02	2461038.95002	17.62	0.01	22	ABMag	w-P1	PS2_GPC2	45	Robot

r-ZTF

P48_ZTF-Cam

2025-12-17 11:56:34 - 2025-12-17 11:56:34

2461026.9976157 - 2461026.9976157

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
539595	2025-12-17 11:56:34	2461026.9976157	17.8427	0.0606808		ABMag	r-ZTF	P48_ZTF-Cam

g-ZTF

P48_ZTF-Cam

2025-12-15 10:58:19 - 2025-12-17 10:38:07

2461024.9571644 - 2461026.9431366

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
539594	2025-12-17 10:38:07	2461026.9431366	17.506	0.043424		ABMag	g-ZTF	P48_ZTF-Cam
539593	2025-12-15 10:58:19	2461024.9571644			21.0114	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-12-12 15:57:30 - 2025-12-17 13:01:52

2461022.16493 - 2461027.04296

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
539728	2025-12-17 13:01:52	2461027.04296	17.763	0.087	19.37	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
539727	2025-12-12 15:57:30	2461022.16493			18.62	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
285621	2026-01-02 00:06:18	PS1_Bot1	K. C. Chambers,T. de Boer,J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	10:00:50.447	+22:18:51.40	2025-12-29 10:48:01.728	17.62	w-P1		PSN		PS25moa	Pan-STARRS				N
281173	2025-12-18 09:38:03	GOTO_bot	D. O'Neill,K. Ackley,M. Dyer et al.	GOTO	GOTO	10:00:50.457	+22:18:51.49	2025-12-18 02:00:10.944	17.57	L-GOTO		Other		GOTO25lvp	GOTO				N
281001	2025-12-17 15:10:46	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland (IfA et al.	ATLAS	ATLAS	10:00:50.471	+22:18:51.50	2025-12-17 13:01:51.744	17.763	orange-ATLAS		PSN		ATLAS25pvc	ATLAS				N
280935	2025-12-17 13:47:04	BTSbot_bot	Nabeel Rehemtulla (CIERA,NU),Wynn Jacobson-Galán (Caltech) et al.	ZTF	ZTF	10:00:50.473	+22:18:51.40	2025-12-17 10:38:07.002	17.506	g-ZTF		PSN		ZTF25acinfdh	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).	2025TNSTR5017....1R	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

22634

2025-12-19 03:37:30

Liping Li

Liping Li, Zeyi Wang, Qian Zhai, Bo Wang, Jujia Zhang (YNAO); Xiaofeng Wang(THU)

LiONS

SN II

0.023

1

LiONS

The spectrum obtained by LJT is similar to that of a young SN II with a "ledge" feature around 4700A. The redshift is obtained by NED.

2025TNSCR5073....1L

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
22635	2025-12-18 22:28:26	Lijiang-2.4m / YFOSC		Jujia Zhang		LiONS	tns_2025ahep_2025-12-18_22-28-26.324_Lijiang-2.4m_YFOSC_LiONS.dat		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 285621 of Group Pan-STARRS
Previous RA, DEC: 10:00:50.473, +22:18:51.40 (150.2103026, +22.3142764)
Updated RA, DEC: 10:00:50.447, +22:18:51.40 (150.210196104, +22.31427789)

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