2025uls | Transient Name Server

RA/DEC (2000)

03:00:31.197 -14:48:04.44

45.1299890594 -14.8012337632

Type

SN Ic

Redshift

0.074

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-08-15 10:28:43.000

TNS AT

Y

Public

Y

Discovery Mag

19.6196

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
	22256	2025-10-17 10:14:51	Lick-3m / KAST		R. Michael Rich, Zoe McGrath, Aleksandra Bochenek, Ava Huddleston, Ethan Cotta	Jacob Wise	ZTF	tns_2025uls_2025-10-17_10-14-50.79_Lick-3m_KAST_ZTF.txt		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

2025-08-13 05:15:06 - 2025-08-13 05:15:06

2460900.71882 - 2460900.71882

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
510300	2025-08-13 05:15:06	2460900.71882			18.64	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

Clear-

LAST_LAST-Cam

2025-09-04 00:18:54 - 2025-09-17 22:55:02

2460922.51313 - 2460936.45489

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
518147	2025-09-17 22:55:02	2460936.45489	19.22			ABMag	Clear-	LAST_LAST-Cam	400
518146	2025-09-04 00:18:54	2460922.51313			20.39	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

L-GOTO

GOTO-S_GOTO-3

2025-08-12 17:27:15 - 2025-08-17 17:52:27

2460900.227259 - 2460905.24476

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
510258	2025-08-17 17:52:27	2460905.24476	19.41	0.15		ABMag	L-GOTO	GOTO-S_GOTO-3	180
510257	2025-08-12 17:27:15	2460900.227259			19	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

w-P1

PS2_GPC2

2025-08-29 14:12:22 - 2025-08-29 14:12:22

2460917.09192 - 2460917.09192

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
519380	2025-08-29 14:12:22	2460917.09192	19.23	0.04	22	ABMag	w-P1	PS2_GPC2	45	Robot

orange-ATLAS

ATLAS-STH_ATLAS-03

2025-08-18 00:29:39 - 2025-08-18 00:29:39

2460905.52059 - 2460905.52059

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
510301	2025-08-18 00:29:39	2460905.52059	19.412	0.124	20.15	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	110	Robot

BG-q-BlackGem

BG3_BlackGEM-Cam3

2025-08-26 07:02:37 - 2025-08-26 07:02:37

2460913.7934838 - 2460913.7934838

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
512995	2025-08-26 07:02:37	2460913.7934838	19.34	0.09	21.07	ABMag	BG-q-BlackGem	BG3_BlackGEM-Cam3	60	robotic

BG-q-BlackGem

BG2_BlackGEM-Cam2

2025-08-05 10:17:40 - 2025-08-05 10:17:40

2460892.9289352 - 2460892.9289352

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
512994	2025-08-05 10:17:40	2460892.9289352			20.86	ABMag	BG-q-BlackGem	BG2_BlackGEM-Cam2	60	robotic	[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-08-15 10:28:43 - 2025-08-15 10:28:43

2460902.9366088 - 2460902.9366088

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
510085	2025-08-15 10:28:43	2460902.9366088	19.6196	0.177886		ABMag	r-ZTF	P48_ZTF-Cam

g-ZTF

P48_ZTF-Cam

2025-08-13 11:31:11 - 2025-08-18 11:33:14

2460900.9799884 - 2460905.981412

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
510086	2025-08-18 11:33:14	2460905.981412	19.6359	0.13516		ABMag	g-ZTF	P48_ZTF-Cam
510084	2025-08-13 11:31:11	2460900.9799884			19.3068	ABMag	g-ZTF	P48_ZTF-Cam			[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
271055	2025-09-23 20:40:30	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	03:00:31.197	-14:48:04.44	2025-08-29 14:12:21.888	19.23	w-P1		PSN		PS25hpl	Pan-STARRS				N
270490	2025-09-18 04:00:54	LAST_Bot1	E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al.	LAST	LAST	03:00:31.147	-14:48:04.27	2025-09-17 22:55:02.496	19.22	Clear-		PSN			LAST				N
267969	2025-08-28 07:51:02	BlackGEM_Bot1	G. Ramsay, H. Tranin, F. Stoppa et al.	BlackGEM	BlackGEM	03:00:31.219	-14:48:04.30	2025-08-26 07:02:37.000	19.34	BG-q-BlackGem		PSN		BGEM J030031.22-144804.3	BlackGEM				N
266609	2025-08-19 17:42:18	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	03:00:31.189	-14:48:04.43	2025-08-18 00:29:38.976	19.412	orange-ATLAS		PSN		ATLAS25jrs	ATLAS				N
266587	2025-08-19 08:47:43	GOTO_bot	A. Kumar, K. Ackley, M. Dyer et al.	GOTO	GOTO	03:00:31.227	-14:48:03.78	2025-08-17 17:52:27.264	19.41	L-GOTO		Other		GOTO25gaw	GOTO				N
266504	2025-08-18 12:51:21	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	03:00:31.199	-14:48:04.43	2025-08-15 10:28:43.000	19.6196	r-ZTF		PSN		ZTF25abitcpd	ZTF			2025TNSTR3262....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

22256

2025-10-21 10:08:44

Jacob Wise

Jacob Wise (LJMU), Aleksandra Bochenek (LJMU), Zoe McGrath (LJMU), Daniel Perley (LJMU), R. Michael Rich (UCLA), Ava Huddleston (UCLA), Ethan Cotta (UCLA)

ZTF

SN Ic

0.074

1

1

ZTF

Spectrum is well-fit to template spectra from previously classified SNe Ic. Redshift from host galaxy H-alpha emission. Classification performed using Next Generation Superfit (NGSF, Goldwasser et al. 2022).

2025TNSCR4236....1W

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025uls_atrep_22256_ZTF.pdf	NGSF fits	2025-10-21 10:08:44	Jacob Wise

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
22256	2025-10-17 10:14:51	Lick-3m / KAST		R. Michael Rich, Zoe McGrath, Aleksandra Bochenek, Ava Huddleston, Ethan Cotta	Jacob Wise	ZTF	tns_2025uls_2025-10-17_10-14-50.79_Lick-3m_KAST_ZTF.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 271055 of Group Pan-STARRS
Previous RA, DEC: 03:00:31.199, -14:48:04.43 (45.1299954, -14.8012307)
Updated RA, DEC: 03:00:31.197, -14:48:04.44 (45.1299890594, -14.8012337632)

Log in or register to post comments

Log in or register to post comments