2026efu | Transient Name Server

RA/DEC (2000)

15:27:56.125 +10:16:49.80

231.983854608 +10.2805003125

Type

SN Ia

Redshift

0.124

Discovery Report Classification Report

Related AstroNotes: 2026-92

Reporting Group

ALeRCE

Discovering Data Source

ZTF

Discovery Date

2026-02-23 11:06:16.001

TNS AT

Y

Public

Y

Host Name

SDSS J152756.08+101648.6

Discovery Mag

20.1674

Filter

g-ZTF

Reporter/s

A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, J. Correa-Orellana, H. Bommireddy, S. Jurado, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, F. Andrades, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham 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
	23406	2026-03-21 09:04:00	Magellan-Clay / LDSS-3		Yuri Beletsky	Harsh Kumar	FLEET	tns_2026efu_2026-03-21_09-04-00_Magellan-Clay_LDSS-3_FLEET.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-S_GOTO-3

2026-03-05 17:06:19 - 2026-03-05 17:06:19

2461105.212723 - 2461105.212723

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
564199	2026-03-05 17:06:19	2461105.212723			19	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

L-GOTO

GOTO-N_GOTO-1

2026-03-07 03:35:25 - 2026-03-07 03:35:25

2461106.649592 - 2461106.649592

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
564200	2026-03-07 03:35:25	2461106.649592	18.83	0.15		ABMag	L-GOTO	GOTO-N_GOTO-1	180

BG-q-BlackGem

BG4_BlackGEM-Cam4

2026-03-17 06:36:00 - 2026-03-17 06:36:00

2461116.775 - 2461116.775

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
565370	2026-03-17 06:36:00	2461116.775	20.05	0.13	20.74	ABMag	BG-q-BlackGem	BG4_BlackGEM-Cam4	60	robotic

BG-q-BlackGem

BG3_BlackGEM-Cam3

2026-03-10 09:05:51 - 2026-03-10 09:05:51

2461109.8790625 - 2461109.8790625

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
565369	2026-03-10 09:05:51	2461109.8790625			20.22	ABMag	BG-q-BlackGem	BG3_BlackGEM-Cam3	60	robotic	[Last non detection]

r-ZTF

P48_ZTF-Cam

2026-02-23 11:55:23 - 2026-02-23 11:55:23

2461094.996794 - 2461094.996794

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
560915	2026-02-23 11:55:23	2461094.996794	20.2661	0.204326	20.3206	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

g-ZTF

P48_ZTF-Cam

2026-02-14 12:56:08 - 2026-02-23 11:06:16

2461086.0389815 - 2461094.9626852

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
560914	2026-02-23 11:06:16	2461094.9626852	20.1674	0.20339	20.3188	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF
560913	2026-02-14 12:56:08	2461086.0389815			20.7322	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF

i-P1

PS1_GPC1

2026-02-27 12:35:48 - 2026-02-27 12:35:48

2461099.02486 - 2461099.02486

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
562118	2026-02-27 12:35:48	2461099.02486	19.83	0.2	20.7	ABMag	i-P1	PS1_GPC1	27	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
294777	2026-03-17 08:34:02	BlackGEM_Bot1	L. Landsberg, H. Tranin, F. Stoppa et al.	BlackGEM	BlackGEM	15:27:56.122	+10:16:49.87	2026-03-17 06:36:00.000	20.05	BG-q-BlackGem		PSN		BGEM J152756.12+101649.9	BlackGEM				N
294266	2026-03-12 09:06:16	GOTO_bot	M. Pursiainen, K. Ackley, M. Dyer et al.	GOTO	GOTO	15:27:56.130	+10:16:49.44	2026-03-07 03:35:24.576	18.83	L-GOTO		PSN		GOTO26bva	GOTO				N
293265	2026-02-27 18:49:13	YSE_Bot1	D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al.	YSE	Pan-STARRS	15:27:56.125	+10:16:49.80	2026-02-27 12:35:47.904	19.83	i-P1		PSN		PS26amp	Pan-STARRS				N
292620	2026-02-23 18:12:47	ALeRCE	A. Munoz-Arancibia, F.E. Bauer, G. Pignata et al.	ALeRCE	ZTF	15:27:56.136	+10:16:49.74	2026-02-23 11:06:16.001	20.1674	g-ZTF		PSN	SDSS J152756.08+101648.6	ZTF26aahjzfk	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/ZTF26aahjzfk	2026TNSTR.753....1M	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

23404

2026-03-31 20:32:03

Peter Blanchard

Peter Blanchard (Harvard/CfA), Harsh Kumar (Harvard/CfA), Edo Berger (Harvard/CfA), Sebastian Gomez (UT Austin), Daichi Hiramatsu (Univ. of Florida)

FLEET

SN Ia

0.124

1

FLEET

2026TNSCR1380....1B

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
23406	2026-03-21 09:04:00	Magellan-Clay / LDSS-3		Yuri Beletsky	Harsh Kumar	FLEET	tns_2026efu_2026-03-21_09-04-00_Magellan-Clay_LDSS-3_FLEET.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 293265 of Group Pan-STARRS
Previous RA, DEC: 15:27:56.136, +10:16:49.74 (231.98389970677, +10.280484453275)
Updated RA, DEC: 15:27:56.125, +10:16:49.80 (231.983854608, +10.2805003125)

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