2026iut | Transient Name Server

RA/DEC (2000)

13:27:25.130 +09:30:53.69

201.85470947647 +9.5149151823529

Type

SN Ia

Redshift

0.087

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2026-04-05 07:57:39.000

TNS AT

Y

Public

Y

Discovery Mag

19.4971

Filter

g-ZTF

Reporter/s

Avinash Singh (SU), K-Ryan Hinds (Caltech), Christoffer Fremling (Caltech), Mansi Kasliwal (Caltech), Theophile du Laz (Caltech), Thomas Culino (Caltech), Joahan Castaneda Jaimes (CIT, IPAC), Michael Coughlin (UMN), Antoine Le Calloch (UMN) , Pete Bachant (Caltech) on behalf of Z+LIONS

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
	23488	2026-04-17 03:26:40	NOT / ALFOSC	1200	Konstantinos Tsalapatas and Jesper Sollerman	Konstantinos Tsalapatas	ZTF	tns_2026iut_2026-04-17_03-26-40.405_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 Remarks
	23479	2026-04-16 04:37:06	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2026iut_2026-04-16_04-37-05.766329_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

wide-ATLAS

ATLAS-TDO_ATLAS-05

2026-04-12 00:49:59 - 2026-04-12 00:49:59

2461142.53471 - 2461142.53471

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
574760	2026-04-12 00:49:59	2461142.53471	18.533	0.128	20.17	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot

L-GOTO

GOTO-S_GOTO-3

2026-03-30 13:57:57 - 2026-03-30 13:57:57

2461130.081912 - 2461130.081912

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
573387	2026-03-30 13:57:57	2461130.081912			19.3	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2026-04-06 23:39:33 - 2026-04-06 23:39:33

2461137.4858 - 2461137.4858

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
573388	2026-04-06 23:39:33	2461137.4858	19.45	0.15		ABMag	L-GOTO	GOTO-N_GOTO-2	180

orange-ATLAS

ATLAS-STH_ATLAS-03

2026-04-08 01:53:20 - 2026-04-08 01:53:20

2461138.5787 - 2461138.5787

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
574759	2026-04-08 01:53:20	2461138.5787			18.92	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

r-ZTF

P48_ZTF-Cam

2026-04-07 07:59:25 - 2026-04-07 07:59:25

2461137.8329282 - 2461137.8329282

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
573373	2026-04-07 07:59:25	2461137.8329282	19.5584	0.134828		ABMag	r-ZTF	P48_ZTF-Cam

g-ZTF

P48_ZTF-Cam

2026-04-04 10:59:46 - 2026-04-05 07:57:39

2461134.9581713 - 2461135.8317014

4

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
573372	2026-04-05 07:57:39	2461135.8317014	19.4971	0.178383		ABMag	g-ZTF	P48_ZTF-Cam
576043	2026-04-05 07:57:39	2461135.8317014	19.4971	0.178383	19.6048	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
573371	2026-04-04 10:59:46	2461134.9581713			19.4998	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]
576042	2026-04-04 10:59:46	2461134.9581713			19.047	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

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
300513	2026-04-17 18:47:13	Fink	Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker	Fink	ZTF	13:27:25.130	+09:30:53.69	2026-04-05 07:57:39.001	19.4971	g-ZTF		PSN		ZTF26aarfiot	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aarfiot		N
299875	2026-04-12 20:47:36	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	13:27:25.096	+09:30:53.54	2026-04-12 00:49:58.944	18.533	wide-ATLAS		PSN		ATLAS26ebq	ATLAS				N
299157	2026-04-07 23:40:09	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	13:27:24.973	+09:30:53.25	2026-04-06 23:39:33.120	19.45	L-GOTO		Other		GOTO26cxi	GOTO				N
299150	2026-04-07 21:54:20	ZTF_LIONS	Avinash Singh (SU), K-Ryan Hinds (Caltech), Christoffer Fremling (Caltech) et al.	ZTF	ZTF	13:27:25.132	+09:30:53.72	2026-04-05 07:57:39.000	19.4971	g-ZTF		PSN		ZTF26aarfiot	ZTF			2026TNSTR1475....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

23486

2026-04-17 12:34:46

Steve Schulze

Jesper Sollerman, Kostas Tsalapatas (OKC), Steve Schulze (WIS) report on behalf the ZTF SLSN SWG

ZTF

SN Ia

0.087

1

ZTF

2026TNSCR1691....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
23488	2026-04-17 03:26:40	NOT / ALFOSC	1200	Konstantinos Tsalapatas and Jesper Sollerman	Konstantinos Tsalapatas	ZTF	tns_2026iut_2026-04-17_03-26-40.405_NOT_ALFOSC_ZTF.ascii		Object

23477

2026-04-16 16:39:40

ZTF_Bot1

C. Fremling and J. Purdum on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore

ZTF

SN Ia

0.087

1

ZTF

2026TNSCR1661....1F

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
23479	2026-04-16 04:37:06	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2026iut_2026-04-16_04-37-05.766329_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 300513 of Group ZTF
Previous RA, DEC: 13:27:25.132, +09:30:53.72 (201.8547156, +9.5149219)
Updated RA, DEC: 13:27:25.130, +09:30:53.69 (201.85470947647, +9.5149151823529)

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