2025noo | Transient Name Server

RA/DEC (2000)

11:10:56.003 +46:56:36.05

167.7333472 +46.9433477

Type

SN II

Redshift

0.019645

Discovery Report Classification Report

Related AstroNotes: 2025-185

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-06-15 06:25:54.336

TNS AT

Y

Public

Y

Discovery Mag

18.711

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)

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
	21348	2025-06-18 00:00:00	UH88 / SNIFS	1800	Hoogendam	Hoogendam	SCAT	tns_2025noo_2025-06-18_UH88_SNIFS_SCAT.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

r-WFST

WFST_WFST-WFC

2025-11-11 22:10:34 - 2025-11-11 22:10:34

2460991.424 - 2460991.424

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
531911	2025-11-11 22:10:34	2460991.424	21.07	0.11		ABMag	r-WFST	WFST_WFST-WFC	30

g-WFST

WFST_WFST-WFC

2025-11-10 21:36:00 - 2025-11-10 21:36:00

2460990.4 - 2460990.4

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
531910	2025-11-10 21:36:00	2460990.4			21.48	ABMag	g-WFST	WFST_WFST-WFC	30		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-06-09 05:46:18 - 2025-07-16 04:07:37

2460835.7404861 - 2460872.671956

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
502831	2025-07-16 04:07:37	2460872.671956	18.6689	0.0783857		ABMag	r-ZTF	P48_ZTF-Cam
502829	2025-06-09 05:46:18	2460835.7404861			19.7521	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-07-03 04:24:16 - 2025-07-03 04:24:16

2460859.6835185 - 2460859.6835185

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
502830	2025-07-03 04:24:16	2460859.6835185	19.2193	0.189887		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-06-15 06:25:54 - 2025-06-15 06:25:54

2460841.76799 - 2460841.76799

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
495252	2025-06-15 06:25:54	2460841.76799	18.711	0.135	19.43	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-06-13 07:36:59 - 2025-06-13 07:36:59

2460839.81735 - 2460839.81735

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
495251	2025-06-13 07:36:59	2460839.81735			18.87	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
277310	2025-11-17 15:05:22	WFST_SN	Zelin Xu, Dezheng Meng, Ji-an Jiang et al.	WFST	WFST	11:10:55.980	+46:56:35.96	2025-11-11 22:10:33.600	21.07	r-WFST		PSN		WFST-GW251111etghu	WFST				N
262673	2025-07-16 06:35:37	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	11:10:56.003	+46:56:36.05	2025-07-03 04:24:15.998	19.2193	g-ZTF		PSN		ZTF25aaumuvk	ZTF				N
258607	2025-06-15 10:03:22	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	11:10:55.971	+46:56:35.86	2025-06-15 06:25:54.336	18.711	orange-ATLAS		PSN		ATLAS25gdu	ATLAS			2025TNSTR2222....1T	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

21348

2025-06-18 09:08:05

Willem Hoogendam

Willem Hoogendam (IfA/Hawaii), on behalf of the SCAT team

SCAT

SN II

0.019645

1

SCAT

Potential SN II from broad Halpha emission and somewhat blue continuum. Narrow Halpha is coincident with galaxy redshift from NED. A second spectrum may be necessary to confirm this classification.

2025TNSCR2281....1H

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
21348	2025-06-18 00:00:00	UH88 / SNIFS	1800	Hoogendam	Hoogendam	SCAT	tns_2025noo_2025-06-18_UH88_SNIFS_SCAT.dat		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 262673 of Group ZTF
Previous RA, DEC: 11:10:55.971, +46:56:35.86 (167.733214444, +46.9432944444)
Updated RA, DEC: 11:10:56.003, +46:56:36.05 (167.7333472, +46.9433477)

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