2025nkw | Transient Name Server

RA/DEC (2000)

12:33:10.910 +48:02:45.12

188.2954565 +48.0458674

Type

SN II

Redshift

0.030516

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-06-13 07:05:08.736

TNS AT

Y

Public

Y

Discovery Mag

18.832

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

▌

GOTO-N_GOTO-2_L

▌

P48_ZTF-Cam_g

▌

ATLAS-MLO_ATLAS-01_orange

▌

ATLAS-HKO_ATLAS-02_orange

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
	21484	2025-07-06 05:17:33	P60 / SEDM	2700	SEDmRobot		ZTF	tns_2025nkw_2025-07-06_05-17-32.549724_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

2025-06-04 22:38:41 - 2025-06-14 21:32:53

2460831.443526 - 2460841.397838

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
495356	2025-06-14 21:32:53	2460841.397838	18.02	0.14		ABMag	L-GOTO	GOTO-N_GOTO-2	135
495355	2025-06-04 22:38:41	2460831.443526			18.4	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-07-03 04:07:37 - 2025-07-05 06:12:39

2460859.671956 - 2460861.7587847

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
500943	2025-07-05 06:12:39	2460861.7587847	18.9858	0.11349		ABMag	g-ZTF	P48_ZTF-Cam
500942	2025-07-03 04:07:37	2460859.671956	18.7538	0.110651		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-06-11 07:43:07 - 2025-06-11 07:43:07

2460837.82161 - 2460837.82161

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
494815	2025-06-11 07:43:07	2460837.82161			17.02	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-06-13 07:05:09 - 2025-06-13 07:05:09

2460839.79524 - 2460839.79524

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
494816	2025-06-13 07:05:09	2460839.79524	18.832	0.146	19.26	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
261585	2025-07-05 08:25:05	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	12:33:10.910	+48:02:45.12	2025-07-03 04:07:36.998	18.7538	g-ZTF		PSN		ZTF25aazfwoe	ZTF				N
258683	2025-06-15 22:11:10	GOTO_bot	D. O'Neill, A. Kumar, K. Ackley et al.	GOTO	GOTO	12:33:10.896	+48:02:45.41	2025-06-14 21:32:53.376	18.02	L-GOTO		Other		GOTO25dnk	GOTO				N
258360	2025-06-13 09:54:13	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	12:33:10.951	+48:02:45.33	2025-06-13 07:05:08.736	18.832	orange-ATLAS		PSN		ATLAS25gcc	ATLAS			2025TNSTR2203....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

21484

2025-07-07 17:21:30

ZTF_Bot1

J. Sollerman, K. Das, S. Covarrubias, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration

ZTF

SN II

0.030516

1

ZTF

2025TNSCR2604....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
21484	2025-07-06 05:17:33	P60 / SEDM	2700	SEDmRobot		ZTF	tns_2025nkw_2025-07-06_05-17-32.549724_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 261585 of Group ZTF
Previous RA, DEC: 12:33:10.951, +48:02:45.33 (188.295627143, +48.0459242857)
Updated RA, DEC: 12:33:10.910, +48:02:45.12 (188.2954565, +48.0458674)

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