2026nkj | Transient Name Server

RA/DEC (2000)

16:29:21.424 +50:38:51.16

247.339267755 +50.6475450588

Type

SN IIn

Redshift

0.103

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2026-05-21 08:49:48.996

TNS AT

Y

Public

Y

Discovery Mag

20.0695

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
	24223	2026-06-24 00:00:50	NOT / ALFOSC	1200	Jesper Sollerman, Konstantinos Tsalapatas	Konstantinos Tsalapatas	ZTF	tns_2026nkj_2026-06-24_00-00-50_NOT_ALFOSC_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 z-step: v-step: Remarks

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

wide-ATLAS

ATLAS-TDO_ATLAS-05

2026-06-04 01:15:05 - 2026-06-04 01:15:05

2461195.55214 - 2461195.55214

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
589350	2026-06-04 01:15:05	2461195.55214			19.37	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

r-WFST

WFST_WFST-WFC

2026-05-19 20:06:43 - 2026-05-23 20:51:22

2461180.338 - 2461184.369

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
589432	2026-05-23 20:51:22	2461184.369	19.99	0.06		ABMag	r-WFST	WFST_WFST-WFC	30
589431	2026-05-19 20:06:43	2461180.338			19.67	ABMag	r-WFST	WFST_WFST-WFC	30		[Last non detection]

Clear-

LAST_LAST-Cam

2026-05-19 22:12:59 - 2026-05-24 00:36:14

2461180.42568 - 2461184.52516

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
593758	2026-05-24 00:36:14	2461184.52516	19.73			ABMag	Clear-	LAST_LAST-Cam	400
593757	2026-05-19 22:12:59	2461180.42568			20.29	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2026-05-21 00:00:12 - 2026-05-22 23:57:43

2461181.50014 - 2461183.498409

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
589395	2026-05-22 23:57:43	2461183.498409	19.5	0.19		ABMag	L-GOTO	GOTO-N_GOTO-2	180
589394	2026-05-21 00:00:12	2461181.50014			19.8	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

w-P1

PS2_GPC2

2026-06-11 08:10:07 - 2026-06-11 08:10:07

2461202.84036 - 2461202.84036

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
597866	2026-06-11 08:10:07	2461202.84036	18.92	0.02	22	ABMag	w-P1	PS2_GPC2	45	Robot

g-ZTF

P48_ZTF-Cam

2026-05-15 10:07:09 - 2026-05-23 08:25:03

2461175.9216319 - 2461183.8507292

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
584792	2026-05-23 08:25:03	2461183.8507292	19.7695	0.179451		ABMag	g-ZTF	P48_ZTF-Cam
584791	2026-05-21 08:49:49	2461181.8679282	20.0695	0.180568		ABMag	g-ZTF	P48_ZTF-Cam
584790	2026-05-15 10:07:09	2461175.9216319			21.2274	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2026-06-05 08:59:28 - 2026-06-05 08:59:28

2461196.87463 - 2461196.87463

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
589351	2026-06-05 08:59:28	2461196.87463	18.93	0.158	19.39	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
312052	2026-07-04 10:38:21	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	16:29:21.424	+50:38:51.16	2026-06-11 08:10:07.104	18.92	w-P1		PSN		PS26dtl	Pan-STARRS				N
309589	2026-06-22 04:13:34	LAST_Bot1	E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al.	LAST	LAST	16:29:21.438	+50:38:51.35	2026-05-24 00:36:13.824	19.73	Clear-		PSN			LAST				N
307288	2026-06-07 14:05:03	WFST_SN	Zelin Xu, Dezheng Meng, Ji-an Jiang et al.	WFST	WFST	16:29:21.420	+50:38:51.16	2026-05-23 20:51:21.600	19.99	r-WFST		PSN		WFST260523adfob	WFST				N
307270	2026-06-07 10:21:11	GOTO_bot	M. Kennedy, K. Ackley, M. Dyer et al.	GOTO	GOTO	16:29:21.579	+50:38:51.93	2026-05-22 23:57:42.624	19.5	L-GOTO		Other		GOTO26fkm	GOTO				N
307251	2026-06-07 00:36:31	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	16:29:21.411	+50:38:51.26	2026-06-05 08:59:28.032	18.93	orange-ATLAS		PSN		ATLAS26gts	ATLAS				N
304973	2026-05-23 09:26:23	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	16:29:21.450	+50:38:51.10	2026-05-21 08:49:48.996	20.0695	g-ZTF		PSN		ZTF26aaxrwio	ZTF			2026TNSTR2250....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

24217

2026-07-09 23:07:40

ZTF_Bot1

R. Lunnan, J. Castaneda Jaimes, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SN IIn

0.103

1

ZTF

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
24223	2026-06-24 00:00:50	NOT / ALFOSC	1200	Jesper Sollerman, Konstantinos Tsalapatas	Konstantinos Tsalapatas	ZTF	tns_2026nkj_2026-06-24_00-00-50_NOT_ALFOSC_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 312052 of Group Pan-STARRS
Previous RA, DEC: 16:29:21.450, +50:38:51.10 (247.3393763, +50.6475268)
Updated RA, DEC: 16:29:21.424, +50:38:51.16 (247.339267755, +50.6475450588)

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