2026mxg | Transient Name Server

RA/DEC (2000)

12:23:56.695 +21:12:04.15

185.98622983333 +21.201152622222

Type

SN Ia

Redshift

0.059

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2026-05-15 06:16:29.997

TNS AT

Y

Public

Y

Discovery Mag

20.5476

Filter

g-ZTF

Reporter/s

Yogesh Wagh (LJMU), 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
	23798	2026-05-21 03:59:34	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2026mxg_2026-05-21_03-59-33.708948_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-1

2026-05-12 21:22:34 - 2026-05-16 21:55:57

2461173.390667 - 2461177.413853

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
583529	2026-05-16 21:55:57	2461177.413853	19.86	0.16		ABMag	L-GOTO	GOTO-N_GOTO-1	180
583528	2026-05-12 21:22:34	2461173.390667			19.9	ABMag	L-GOTO	GOTO-N_GOTO-1	180		[Last non detection]

i-ZTF

P48_ZTF-Cam

2026-05-15 04:22:06 - 2026-05-15 04:22:06

2461175.6820139 - 2461175.6820139

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
583362	2026-05-15 04:22:06	2461175.6820139			20.3034	ABMag	i-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2026-05-14 06:20:44 - 2026-05-16 06:09:49

2461174.7643981 - 2461176.7568171

4

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
583364	2026-05-16 06:09:49	2461176.7568171	20.0208	0.160822		ABMag	g-ZTF	P48_ZTF-Cam
583363	2026-05-15 06:16:30	2461175.7614583	20.5476	0.138932		ABMag	g-ZTF	P48_ZTF-Cam
584461	2026-05-15 06:16:30	2461175.7614583	20.5372	0.224779	20.5494	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
584460	2026-05-14 06:20:44	2461174.7643981			20.5373	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

orange-ATLAS

ATLAS-MLO_ATLAS-01

2026-05-14 10:20:14 - 2026-05-14 10:20:14

2461174.93072 - 2461174.93072

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
584424	2026-05-14 10:20:14	2461174.93072			19.43	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2026-05-17 08:22:15 - 2026-05-17 08:22:15

2461177.84878 - 2461177.84878

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
584425	2026-05-17 08:22:15	2461177.84878	19.462	0.171	19.58	ABMag	cyan-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
304827	2026-05-21 19:25:14	Fink	Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker	Fink	ZTF	12:23:56.695	+21:12:04.15	2026-05-15 06:16:29.997	20.5372	g-ZTF		PSN		ZTF26aawzpcp	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aawzpcp		N
304808	2026-05-21 17:26:16	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	12:23:56.700	+21:12:04.07	2026-05-17 08:22:14.592	19.462	cyan-ATLAS		PSN		ATLAS26fzt	ATLAS				N
304274	2026-05-17 22:30:57	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	12:23:56.591	+21:12:04.10	2026-05-16 21:55:56.640	19.86	L-GOTO		Other		GOTO26exd	GOTO		This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. This candidate was flagged by volunteers: Antonio Pasqua, M.T. Mazzucato, Mayahuel Torres Guerrero, Ciro Sirio Perrella, Svetoslav Alexandrov. The most likely subtype for this transient is hostless transient (55.6% consensus).		N
304188	2026-05-17 17:06:04	ZTF_LIONS	Yogesh Wagh (LJMU), K-Ryan Hinds (Caltech), Christoffer Fremling (Caltech) et al.	ZTF	ZTF	12:23:56.688	+21:12:04.15	2026-05-15 06:16:29.997	20.5476	g-ZTF		PSN		ZTF26aawzpcp	ZTF			2026TNSTR2145....1W	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

23794

2026-05-21 14:52:52

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

0.059

1

ZTF

2026TNSCR2219....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
23798	2026-05-21 03:59:34	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2026mxg_2026-05-21_03-59-33.708948_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 304827 of Group ZTF
Previous RA, DEC: 12:23:56.688, +21:12:04.15 (185.9861988, +21.2011517)
Updated RA, DEC: 12:23:56.695, +21:12:04.15 (185.98622983333, +21.201152622222)

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