2026vcu | Transient Name Server

RA/DEC (2000)

21:27:15.776 +03:47:52.77

321.815732926 +3.79799175287

Type

SN IIn

Redshift

0.062

Discovery Report Classification Report

Reporting Group

ALeRCE

Discovering Data Source

ZTF

Discovery Date

2026-07-17 07:57:24.002

TNS AT

Y

Public

Y

Host Name

DESI J321.8165+03.7955

Host Redshift

0.0624431215

Discovery Mag

20.8306

Filter

r-ZTF

Reporter/s

F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, S. Jurado, A. Mourao, A. Alvarez, F. Andrades, A. Bayo, G. Cabrera-Vives, M. Catelan, P.A. Estevez, S. Eyheramendy, B. Galindo, L. Hernandez-Garcia, H. Larranaga, K. Medina, D. Moreno-Cartagena, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, on behalf of the ALeRCE broker

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
	24466	2026-08-09 05:56:40	P200 / NGPS		Christoffer Fremling	Christoffer Fremling, K-Ryan Hinds	ZTF	tns_2026vcu_2026-08-09_05-56-40_P200_NGPS_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

2026-07-21 02:29:26 - 2026-07-21 02:29:26

2461242.60377 - 2461242.60377

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
607069	2026-07-21 02:29:26	2461242.60377			20.07	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

Clear-

LAST_LAST-Cam

2025-06-20 00:21:50 - 2026-09-09 17:12:41

2460846.51516 - 2461293.21714

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
617672	2026-09-09 17:12:41	2461293.21714	18.4			ABMag	Clear-	LAST_LAST-Cam	400
617671	2025-06-20 00:21:50	2460846.51516			22.13	ABMag	Clear-	LAST_LAST-Cam	11580		[Last non detection]

L-GOTO

GOTO-S_GOTO-3

2026-07-20 13:30:10 - 2026-07-20 13:30:10

2461242.062614 - 2461242.062614

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
606062	2026-07-20 13:30:10	2461242.062614	19.83	0.19		ABMag	L-GOTO	GOTO-S_GOTO-3	135

L-GOTO

GOTO-N_GOTO-1

2026-07-15 01:21:45 - 2026-07-15 01:21:45

2461236.556773 - 2461236.556773

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
606061	2026-07-15 01:21:45	2461236.556773			20.1	ABMag	L-GOTO	GOTO-N_GOTO-1	180		[Last non detection]

i-ZTF

P48_ZTF-Cam

2026-07-16 11:09:36 - 2026-07-16 11:09:36

2461237.965 - 2461237.965

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
605300	2026-07-16 11:09:36	2461237.965			20.09	ABMag	i-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF

r-ZTF

P48_ZTF-Cam

2026-07-17 07:57:24 - 2026-07-19 09:08:18

2461238.8315278 - 2461240.8807639

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
605302	2026-07-19 09:08:18	2461240.8807639	20.0817	0.171103	20.7869	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF
605301	2026-07-17 07:57:24	2461238.8315278	20.8306	0.274135	20.6269	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

orange-ATLAS

ATLAS-MLO_ATLAS-01

2026-07-23 12:00:43 - 2026-07-23 12:00:43

2461245.0005 - 2461245.0005

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
607070	2026-07-23 12:00:43	2461245.0005	19.31	0.186	19.51	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot

w-P1

PS1_GPC1

2026-07-16 13:04:09 - 2026-07-16 13:04:09

2461238.04455 - 2461238.04455

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
605838	2026-07-16 13:04:09	2461238.04455	21.35	0.11	22	ABMag	w-P1	PS1_GPC1	45	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
322919	2026-09-09 19:51:08	LAST_Bot1	R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al.	LAST	LAST	21:27:15.798	+03:47:53.11	2026-09-09 17:12:40.896	18.4	Clear-		PSN			LAST				N
316972	2026-07-23 22:34:00	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	21:27:15.751	+03:47:52.52	2026-07-23 12:00:43.200	19.31	orange-ATLAS		PSN		ATLAS26jaq	ATLAS				N
316397	2026-07-22 08:39:05	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	21:27:15.767	+03:47:52.68	2026-07-20 13:30:09.504	19.83	L-GOTO		Other		GOTO26hdt	GOTO				N
316209	2026-07-21 16:16:38	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	21:27:15.776	+03:47:52.77	2026-07-16 13:04:09.120	21.35	w-P1		PSN		PS26fhu	Pan-STARRS				N
315871	2026-07-19 17:04:09	ALeRCE	F. Forster, F.E. Bauer, G. Pignata et al.	ALeRCE	ZTF	21:27:15.781	+03:47:52.92	2026-07-17 07:57:24.002	20.8306	r-ZTF		PSN	DESI J321.8165+03.7955	ZTF26abiavoi	ZTF		SN candidate classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26abiavoi	2026TNSTR2970....1F	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

24459

2026-08-10 23:11:27

ZTF_Bot1

K. Hinds, C. Fremling, J. Castaneda Jaimes, T. du Laz, T. Culino, M. Kasliwal (Caltech), and M. Coughlin (UoM) on behalf of the ZTF LIONS collaboration

ZTF

SN IIn

0.062

1

ZTF

2026TNSCR3260....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
24466	2026-08-09 05:56:40	P200 / NGPS		Christoffer Fremling	Christoffer Fremling, K-Ryan Hinds	ZTF	tns_2026vcu_2026-08-09_05-56-40_P200_NGPS_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 316209 of Group Pan-STARRS
Previous RA, DEC: 21:27:15.781, +03:47:52.92 (321.8157561, +3.7980341)
Updated RA, DEC: 21:27:15.776, +03:47:52.77 (321.815732926, +3.79799175287)

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