2025byq | Transient Name Server

RA/DEC (2000)

07:12:27.098 +50:17:35.68

108.112909975 +50.29324425

Type

SN Ia

Redshift

0.023

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-02-17 04:11:39.998

TNS AT

Y

Public

Y

Discovery Mag

20.0923

Filter

g-ZTF

Reporter/s

Nabeel Rehemtulla (CIERA, NU), 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
	20455	2025-02-25 05:05:56	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025byq_2025-02-25_05-05-56.239242_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
	20430	2025-02-21 18:34:00	Other / Other	5400	Claudio Balcon	Claudio Balcon	None	tns_2025byq_2025-02-21_18-34-00_Other_Other_None.dat	tns_2025byq_2025-02-21_18-34-00_Other_Other_None.fit	Object			We obtained the low-resolution spectrum R~100 using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.
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 We obtained the low-resolution spectrum R~100 using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

Clear-

LAST_LAST-Cam

2025-01-30 23:44:18 - 2025-02-28 16:44:29

2460706.4891 - 2460735.19756

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
472773	2025-02-28 16:44:29	2460735.19756	16			ABMag	Clear-	LAST_LAST-Cam	400
472772	2025-01-30 23:44:18	2460706.4891			20.3	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

L-GOTO

GOTO-N_GOTO-1

2025-02-13 22:06:47 - 2025-02-19 21:02:22

2460720.421382 - 2460726.376637

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
469851	2025-02-19 21:02:22	2460726.376637	18.09	0.06		ABMag	L-GOTO	GOTO-N_GOTO-1	180
469850	2025-02-13 22:06:47	2460720.421382			18.9	ABMag	L-GOTO	GOTO-N_GOTO-1	180		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-02-19 03:28:26 - 2025-02-19 03:28:26

2460725.6447454 - 2460725.6447454

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
469606	2025-02-19 03:28:26	2460725.6447454	18.3514	0.0915825		ABMag	r-ZTF	P48_ZTF-Cam

g-ZTF

P48_ZTF-Cam

2025-02-11 09:54:24 - 2025-02-17 04:11:40

2460717.9127778 - 2460723.6747685

4

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
469605	2025-02-17 04:11:40	2460723.6747685	20.0923	0.266583		ABMag	g-ZTF	P48_ZTF-Cam
471930	2025-02-17 04:11:40	2460723.6747685	20.0923	0.266583	19.9537	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
469604	2025-02-11 09:54:24	2460717.9127778			18.6476	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]
471929	2025-02-11 09:54:24	2460717.9127778			18.6476	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-02-19 08:34:48 - 2025-02-19 08:34:48

2460725.8575 - 2460725.8575

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
471146	2025-02-19 08:34:48	2460725.8575	18.309	0.079	19.47	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-02-17 09:48:29 - 2025-02-17 09:48:29

2460723.90867 - 2460723.90867

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
471145	2025-02-17 09:48:29	2460723.90867			19.27	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
246348	2025-02-28 17:01:12	LAST_Bot1	R. Konno (WIS), E. Zimmerman (WIS), A. Horowicz (WIS) et al.	LAST	LAST	07:12:27.160	+50:17:35.84	2025-02-28 16:44:29.184	16	Clear-		PSN			LAST				N
245991	2025-02-25 19:27:53	Fink	Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker	Fink	ZTF	07:12:27.098	+50:17:35.68	2025-02-17 04:11:39.998	20.0923	g-ZTF		PSN		ZTF25aafwxov	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aafwxov		N
245686	2025-02-23 17:22:03	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	07:12:27.105	+50:17:35.72	2025-02-19 08:34:48.000	18.309	orange-ATLAS		PSN		ATLAS25byn	ATLAS				N
245070	2025-02-19 21:37:20	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	07:12:27.133	+50:17:35.47	2025-02-19 21:02:21.696	18.09	L-GOTO		Other		GOTO25amm	GOTO				N
244971	2025-02-19 03:41:19	Fritz	Nabeel Rehemtulla (CIERA, NU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	07:12:27.099	+50:17:35.57	2025-02-17 04:11:39.998	20.0923	g-ZTF		PSN		ZTF25aafwxov	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).	2025TNSTR.680....1R	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

20455

2025-02-25 05:57:59

ZTF_Bot1

C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore

ZTF

SN Ia

0.023

1

ZTF

2025TNSCR.786....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
20455	2025-02-25 05:05:56	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025byq_2025-02-25_05-05-56.239242_P60_SEDM_ZTF.ascii		Object

20430

2025-02-21 19:39:43

Claudio Balcon

Claudio Balcon (Belluno A.O. ISSP)

None

SN Ia

0.015

1

GELATO (Harutyunyan et al., 2008, A&A, 488, 383) suggests that this spectrum resembles that of a type Ia supernova. The redshift has been deduced from the SN spectral fitting.

2025TNSCR.710....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
20430	2025-02-21 18:34:00	Other / Other	5400	Claudio Balcon	Claudio Balcon	None	tns_2025byq_2025-02-21_18-34-00_Other_Other_None.dat	tns_2025byq_2025-02-21_18-34-00_Other_Other_None.fit	Object			We obtained the low-resolution spectrum R~100 using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 245991 of Group ZTF
Previous RA, DEC: 07:12:27.099, +50:17:35.57 (108.1129122, +50.2932143)
Updated RA, DEC: 07:12:27.098, +50:17:35.68 (108.112909975, 50.29324425)

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