2025fi | Transient Name Server

RA/DEC (2000)

02:49:05.448 -14:28:05.93

42.2727 -14.468314

Type

SN Ia

Redshift

0.028413

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-01-07 06:09:16.416

TNS AT

Y

Public

Y

Discovery Mag

18.869

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)

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
	20105	2025-01-09 07:51:01	UH88 / SNIFS	1800	M. E. Huber		SCAT	tns_2025fi_2025-01-09_07-51-01_UH88_SNIFS_SCAT.dat		Object			Possibly poor dichroic correction for ~490-530 nm
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 Possibly poor dichroic correction for ~490-530 nm

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

L-GOTO

GOTO-S_GOTO-3

2025-01-03 12:44:42 - 2025-01-03 12:44:42

2460679.031036 - 2460679.031036

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
461669	2025-01-03 12:44:42	2460679.031036			20.3	ABMag	L-GOTO	GOTO-S_GOTO-3	360		[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-01-08 22:12:10 - 2025-01-08 22:12:10

2460684.425119 - 2460684.425119

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
461670	2025-01-08 22:12:10	2460684.425119	17.83	0.1		ABMag	L-GOTO	GOTO-N_GOTO-2	180

orange-ATLAS

ATLAS-STH_ATLAS-03

2025-01-05 20:13:01 - 2025-01-05 20:13:01

2460681.34237 - 2460681.34237

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
461427	2025-01-05 20:13:01	2460681.34237			19.01	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-01-07 06:09:16 - 2025-01-07 06:09:16

2460682.75644 - 2460682.75644

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
461428	2025-01-07 06:09:16	2460682.75644	18.869	0.192	19.22	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot

Other-

Other_Other

2016-10-26 06:49:55 - 2025-01-10 03:33:13

2457687.78467 - 2460685.64807

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
461908	2025-01-10 03:33:13	2460685.64807	16.6		18.1	VegaMag	Other-	Other_Other	160	Robot	MASTER-OAFA
461907	2025-01-10 03:22:36	2460685.6407	16.3		18.1	VegaMag	Other-	Other_Other	160	Robot	MASTER-OAFA
461906	2016-10-26 06:49:55	2457687.78467			19.7	VegaMag	Other-	Other_Other	180	Robot	[Last non detection] MASTER-OAFA

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
240937	2025-01-10 10:42:59	MASTER	Ya.Kechin,V.Lipunov,E.Gorbovskoy et al.	MASTER	MASTER	02:49:05.500	-14:28:07.50	2025-01-10 03:22:36.480	16.3	Other-		PSN		MASTER OT J024905.50-142807.5	MASTER				N
240820	2025-01-09 07:02:35	GOTO_bot	A. Kumar,T. Killestein,L. Kelsey et al.	GOTO	GOTO	02:49:05.448	-14:28:05.93	2025-01-08 22:12:10.368	17.83	L-GOTO		Other		GOTO25el	GOTO		This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Michał Biesiada, A. G. Bull, Lucia Maria Ferreira Lima, Rosemary Billington, M.T. Mazzucato.		N
240698	2025-01-07 09:14:03	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	02:49:05.447	-14:28:06.07	2025-01-07 06:09:16.416	18.869	orange-ATLAS		PSN		ATLAS25agx	ATLAS			2025TNSTR..88....1T	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

20105

2025-01-09 10:18:33

Mark Huber

M. E. Huber (IfA, UH Manoa) on behalf of the SCAT team

SCAT

SN Ia

0.028413

1

ATLAS, SCAT

Spectrum matches type Ia SN, classification and age from template cross-correlation with SNID (Blondin and Tonry 2007) with redshift from NED for NGC 1120

2025TNSCR.131....1H

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
20105	2025-01-09 07:51:01	UH88 / SNIFS	1800	M. E. Huber		SCAT	tns_2025fi_2025-01-09_07-51-01_UH88_SNIFS_SCAT.dat		Object			Possibly poor dichroic correction for ~490-530 nm

Comments

Object coordinates updated

Object coordinates updated according to AT-report 240820 of Group GOTO
Previous RA, DEC: 02:49:05.447, -14:28:06.07 (42.2726966667, -14.4683533333)
Updated RA, DEC: 02:49:05.448, -14:28:05.93 (42.272700, -14.468314)

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