2025emr | Transient Name Server

RA/DEC (2000)

07:31:14.964 +21:06:28.91

112.812348 +21.1080306

Type

SN Ia

Redshift

0.07

Discovery Report Classification Report

Related AstroNotes: 2025-96

Reporting Group

LAST

Discovering Data Source

LAST

Discovery Date

2025-03-15 16:41:37.248

TNS AT

Y

Public

Y

Discovery Mag

18.98

Filter

Clear-

Reporter/s

R. Konno (WIS), E. Zimmerman (WIS), A. Horowicz (WIS), S. Garrappa (WIS), E. O. Ofek (WIS), S. Ben-Ami (WIS), D. Polishook (WIS), O. Yaron (WIS), P. Chen (WIS), A. Krassilchtchikov (WIS), Y. M. Shani (WIS), E. Segre (WIS), A. Gal-Yam (WIS), S. Spitzer (WIS), and K. Rybicki (WIS) on behalf of the LAST Collaboration

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
	20625	2025-03-20 04:27:06	LDT / Deveny-LMI	1600	Asaf Horowicz, Erez Zimmerman	Erez Zimmerman	LAST	tns_2025emr_2025-03-20_04-27-05.51_LDT_Deveny-LMI_LAST.ascii	tns_2025emr_2025-03-20_04-27-05.51_LDT_Deveny-LMI_LAST.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

Clear-

LAST_LAST-Cam

2025-02-28 18:32:15 - 2025-03-15 16:41:37

2460735.2724 - 2460750.19557

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
475990	2025-03-15 16:41:37	2460750.19557	18.98			ABMag	Clear-	LAST_LAST-Cam	400
475989	2025-02-28 18:32:15	2460735.2724			20.97	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-03-05 04:36:33 - 2025-03-19 03:36:08

2460739.6920486 - 2460753.6500926

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
476805	2025-03-19 03:36:08	2460753.6500926	18.5669	0.091653		ABMag	r-ZTF	P48_ZTF-Cam
476804	2025-03-05 04:36:33	2460739.6920486			19.2209	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-03-19 04:57:43 - 2025-03-19 04:57:43

2460753.7067477 - 2460753.7067477

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
476806	2025-03-19 04:57:43	2460753.7067477	18.4374	0.0858266		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-03-17 07:37:14 - 2025-03-17 07:37:14

2460751.81752 - 2460751.81752

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
476493	2025-03-17 07:37:14	2460751.81752	19.073	0.188	19.26	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-03-15 09:52:39 - 2025-03-15 09:52:39

2460749.91156 - 2460749.91156

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
476492	2025-03-15 09:52:39	2460749.91156			18.6	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot	[Last non detection]

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
248855	2025-03-19 05:12:09	Fritz	Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al.	ZTF	ZTF	07:31:14.964	+21:06:28.91	2025-03-19 03:36:08.000	18.5669	r-ZTF		PSN		ZTF25aajesph	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).		N
248660	2025-03-17 11:00:18	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	07:31:14.997	+21:06:29.20	2025-03-17 07:37:13.728	19.073	orange-ATLAS		PSN		ATLAS25csj	ATLAS				N
248263	2025-03-15 19:48:35	LAST_Bot1	R. Konno (WIS),E. Zimmerman (WIS),A. Horowicz (WIS) et al.	LAST	LAST	07:31:14.972	+21:06:28.56	2025-03-15 16:41:37.248	18.98	Clear-		PSN			LAST			2025TNSTR.994....1K	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

20625

2025-03-25 07:57:49

Erez Zimmerman

E. A. Zimmerman , A. Horowicz , R. Konno , A. Gal-Yam , E. O. Ofek , S. Ben-Ami , O. Yaron , D. Polishook , A. Blumenzweig, E. Segre , S. Garrappa , P. Chen , A. Krassilchtchikov , M. Engel , Y. M. Shani , P. Rekhi , S. Fainer , S. Spitzer (WIS) on behalf of the LAST Collaboration

LAST

SN Ia

0.07

1

LAST

Based on results from the Next Generation SuperFit (NGSF; Astronote 2022-191) via the WISeREP (Yaron et al. 2012) web interface.

2025TNSCR1138....1Z

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025emr_atrep_20625_LAST.png		2025-03-25 07:57:49	Erez Zimmerman

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
20625	2025-03-20 04:27:06	LDT / Deveny-LMI	1600	Asaf Horowicz, Erez Zimmerman	Erez Zimmerman	LAST	tns_2025emr_2025-03-20_04-27-05.51_LDT_Deveny-LMI_LAST.ascii	tns_2025emr_2025-03-20_04-27-05.51_LDT_Deveny-LMI_LAST.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 248855 of Group ZTF
Previous RA, DEC: 07:31:14.972, +21:06:28.56 (112.81238408964, +21.10793437456)
Updated RA, DEC: 07:31:14.964, +21:06:28.91 (112.812348, 21.1080306)

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