2026maa | Transient Name Server

RA/DEC (2000)

16:50:45.555 +22:21:18.66

252.689811912 +22.3551819743

Type

SN Ia

Redshift

0.101

Discovery Report Classification Report

Related AstroNotes: 2026-145

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2026-05-07 07:56:42.996

TNS AT

Y

Public

Y

Discovery Mag

19.4442

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
	23785	2026-05-20 04:54:19	ESO-NTT / EFOSC2-NTT	900	Jasvinderjit Khaulsay, Jonathan Quirola	Meng-Han Lee, Anirban Dutta, Aiswarya Sankar.K	ePESSTO+	tns_2026maa_2026-05-20_04-54-19_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2026maa_2026-05-20_04-54-19_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	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

r-P1

PS2_GPC2

2026-05-03 13:42:49 - 2026-05-03 13:42:49

2461164.0714 - 2461164.0714

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
583523	2026-05-03 13:42:49	2461164.0714	20.26	0.15	20.6	ABMag	r-P1	PS2_GPC2	27	Robot

r-ZTF

P48_ZTF-Cam

2026-04-30 12:12:23 - 2026-05-10 09:55:01

2461161.0085995 - 2461170.913206

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
581121	2026-05-10 09:55:01	2461170.913206	19.3763	0.130953		ABMag	r-ZTF	P48_ZTF-Cam
581119	2026-04-30 12:12:23	2461161.0085995			19.4637	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2026-05-07 07:56:43 - 2026-05-07 07:56:43

2461167.8310532 - 2461167.8310532

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
581120	2026-05-07 07:56:43	2461167.8310532	19.4442	0.153918		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-MLO_ATLAS-01

2026-05-08 10:52:34 - 2026-05-08 10:52:34

2461168.95317 - 2461168.95317

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
581578	2026-05-08 10:52:34	2461168.95317			19.31	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2026-05-11 11:49:56 - 2026-05-11 11:49:56

2461171.99301 - 2461171.99301

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
581579	2026-05-11 11:49:56	2461171.99301	18.97	0.185	19.03	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
304270	2026-05-17 19:50:54	YSE_Bot1	D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al.	YSE	Pan-STARRS	16:50:45.555	+22:21:18.66	2026-05-03 13:42:48.960	20.26	r-P1		PSN		PS26bki	Pan-STARRS				N
303288	2026-05-11 16:55:03	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	16:50:45.534	+22:21:19.06	2026-05-11 11:49:56.064	18.97	cyan-ATLAS		PSN		ATLAS26fkq	ATLAS				N
303050	2026-05-10 15:01:55	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	16:50:45.559	+22:21:18.64	2026-05-07 07:56:42.996	19.4442	g-ZTF		PSN		ZTF26aauxdkn	ZTF			2026TNSTR2033....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

23781

2026-05-20 14:43:03

ePESSTOplus_Bot1

Jasvinderjit Khaulsay, Jonathan Quirola, Meng-Han Lee, Anirban Dutta, Aiswarya Sankar.K, A. Horowicz on behalf of ePESSTO+

ePESSTO+

SN Ia

0.101

1

ePESSTO+

2026TNSCR2201....1K

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
23785	2026-05-20 04:54:19	ESO-NTT / EFOSC2-NTT	900	Jasvinderjit Khaulsay, Jonathan Quirola	Meng-Han Lee, Anirban Dutta, Aiswarya Sankar.K	ePESSTO+	tns_2026maa_2026-05-20_04-54-19_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2026maa_2026-05-20_04-54-19_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 304270 of Group Pan-STARRS
Previous RA, DEC: 16:50:45.559, +22:21:18.64 (252.6898282, +22.3551769)
Updated RA, DEC: 16:50:45.555, +22:21:18.66 (252.689811912, +22.3551819743)

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