2025hwu | Transient Name Server

RA/DEC (2000)

04:58:31.183 +12:11:34.93

74.6299271889 +12.193037157

Type

SN II

Redshift

0.056

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-03-27 03:42:34.001

TNS AT

Y

Public

Y

Discovery Mag

20.4422

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

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
	21701	2025-08-01 11:05:04	P60 / SEDM	2700	SEDmRobot		ZTF	tns_2025hwu_2025-08-01_11-05-03.515706_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

L-GOTO

GOTO-N_GOTO-2

2025-08-10 05:25:31 - 2025-09-01 04:30:32

2460897.726052 - 2460919.687872

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
514873	2025-09-01 04:30:32	2460919.687872	19.08	0.16		ABMag	L-GOTO	GOTO-N_GOTO-2	180
514872	2025-08-10 05:25:31	2460897.726052			18.1	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

w-P1

PS2_GPC2

2025-09-05 14:30:59 - 2025-09-05 14:30:59

2460924.10485 - 2460924.10485

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
546465	2025-09-05 14:30:59	2460924.10485	18.54	0.01	22	ABMag	w-P1	PS2_GPC2	45	Robot

cyan-ATLAS

ATLAS-CHL_ATLAS-04

2025-08-04 10:07:18 - 2025-08-04 10:07:18

2460891.92174 - 2460891.92174

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
507562	2025-08-04 10:07:18	2460891.92174			16.52	ABMag	cyan-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot	[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-03-25 04:13:43 - 2025-04-21 03:32:33

2460759.6761921 - 2460786.6476042

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
483042	2025-04-21 03:32:33	2460786.6476042	18.7904	0.18022		ABMag	r-ZTF	P48_ZTF-Cam
483040	2025-03-25 04:13:43	2460759.6761921			19.7637	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-03-27 03:42:34 - 2025-03-27 03:42:34

2460761.6545602 - 2460761.6545602

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
483041	2025-03-27 03:42:34	2460761.6545602	20.4422	0.241086		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-08-05 14:25:25 - 2025-08-05 14:25:25

2460893.10098 - 2460893.10098

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
507563	2025-08-05 14:25:25	2460893.10098	18.028	0.076	19.22	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	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
285180	2025-12-31 15:40:32	PS1_Bot1	K. C. Chambers,T. de Boer,J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	04:58:31.183	+12:11:34.93	2025-09-05 14:30:59.040	18.54	w-P1		PSN		PS25lzn	Pan-STARRS				N
268921	2025-09-01 13:19:41	GOTO_bot	M. Pursiainen,D. O'Neill,K. Ackley et al.	GOTO	GOTO	04:58:31.184	+12:11:35.11	2025-09-01 04:30:31.968	19.08	L-GOTO		Other		GOTO25gqo	GOTO				N
265094	2025-08-05 16:24:05	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	04:58:31.193	+12:11:34.99	2025-08-05 14:25:24.672	18.028	orange-ATLAS		PSN		ATLAS25jch	ATLAS				N
252149	2025-04-21 06:42:36	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	04:58:31.187	+12:11:34.92	2025-03-27 03:42:34.001	20.4422	g-ZTF		PSN		ZTF25aanmnao	ZTF			2025TNSTR1478....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

21701

2025-08-04 18:43:14

ZTF_Bot1

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

ZTF

SN II

0.056

1

ZTF

2025TNSCR3071....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
21701	2025-08-01 11:05:04	P60 / SEDM	2700	SEDmRobot		ZTF	tns_2025hwu_2025-08-01_11-05-03.515706_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 285180 of Group Pan-STARRS
Previous RA, DEC: 04:58:31.187, +12:11:34.92 (74.6299471, +12.1930323)
Updated RA, DEC: 04:58:31.183, +12:11:34.93 (74.6299271889, +12.193037157)

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