2025bei | Transient Name Server

RA/DEC (2000)

11:42:59.164 -16:47:44.74

175.7465178 -16.7957614

Type

SN II

Redshift

0.01246

Discovery Report Classification Report

Related AstroNotes: 2025-62

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-02-08 23:34:49.728

TNS AT

Y

Public

Y

Discovery Mag

18.221

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
	20410	2025-02-18 14:24:00	ANU-2.3m / WiFeS	1200	Robotic	K. Auchettl	DEBASS	tns_2025bei_2025-02-18.6_ANU-2.3m_WiFeS_DEBASS.dat	tns_2025bei_2025-02-18.6_ANU-2.3m_WiFeS_DEBASS.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

2024-12-10 02:38:20 - 2025-03-02 00:39:07

2460654.60995 - 2460736.52716

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
473235	2025-03-02 00:39:07	2460736.52716	16.82			ABMag	Clear-	LAST_LAST-Cam	400
473234	2024-12-10 02:38:20	2460654.60995			20.18	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

L-GOTO

GOTO-S_GOTO-3

2025-02-17 14:47:53 - 2025-02-17 14:47:53

2460724.116592 - 2460724.116592

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
469473	2025-02-17 14:47:53	2460724.116592	16.23	0.02		ABMag	L-GOTO	GOTO-S_GOTO-3	180

cyan-ATLAS

ATLAS-CHL_ATLAS-04

2025-02-08 09:21:53 - 2025-02-08 09:21:53

2460714.8902 - 2460714.8902

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
467735	2025-02-08 09:21:53	2460714.8902			18.52	ABMag	cyan-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-STH_ATLAS-03

2025-02-08 23:34:50 - 2025-02-08 23:34:50

2460715.48252 - 2460715.48252

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
467736	2025-02-08 23:34:50	2460715.48252	18.221	0.122	19.14	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot

L-GOTO

GOTO-N_GOTO-1

2025-02-06 02:42:54 - 2025-02-06 02:42:54

2460712.613124 - 2460712.613124

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
469472	2025-02-06 02:42:54	2460712.613124			19.1	ABMag	L-GOTO	GOTO-N_GOTO-1	180		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-02-09 10:32:16 - 2025-02-17 08:11:47

2460715.9390741 - 2460723.8415162

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
469237	2025-02-17 08:11:47	2460723.8415162	16.1978	0.0690204		ABMag	r-ZTF	P48_ZTF-Cam
469235	2025-02-09 10:32:16	2460715.9390741			16.542	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-02-11 10:03:19 - 2025-02-11 10:03:19

2460717.9189699 - 2460717.9189699

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
469236	2025-02-11 10:03:19	2460717.9189699	16.4274	0.0427518		ABMag	g-ZTF	P48_ZTF-Cam

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
246615	2025-03-03 13:00:24	LAST_Bot1	R. Konno (WIS),E. Zimmerman (WIS),A. Horowicz (WIS) et al.	LAST	LAST	11:42:59.122	-16:47:45.36	2025-03-02 00:39:06.624	16.82	Clear-		PSN			LAST				N
244908	2025-02-18 09:53:12	GOTO_bot	D. O'Neill,K. Ackley,M. Dyer et al.	GOTO	GOTO	11:42:59.155	-16:47:44.78	2025-02-17 14:47:53.376	16.23	L-GOTO		Other		GOTO25akb	GOTO				N
244800	2025-02-17 08:18:37	Fritz	Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al.	ZTF	ZTF	11:42:59.164	-16:47:44.74	2025-02-11 10:03:18.999	16.4274	g-ZTF		PSN		ZTF25aafoang	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).		N
243920	2025-02-10 23:27:08	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	11:42:59.161	-16:47:44.85	2025-02-08 23:34:49.728	18.221	orange-ATLAS		PSN		ATLAS25bnr	ATLAS			2025TNSTR.555....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

20410

2025-02-19 09:29:30

Chris Lidman

K. Auchettl (University of Melbourne/UCSC), C. Lidman (ANU), D. Brout (Boston University), B. Martin (ANU), L. Rauf (ANU), B. P. Schmidt (ANU), and B. E. Tucker (ANU)

DEBASS

SN II

0.01246

1

DEBASS

Classified with Superfit

2025TNSCR.682....1A

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
20410	2025-02-18 14:24:00	ANU-2.3m / WiFeS	1200	Robotic	K. Auchettl	DEBASS	tns_2025bei_2025-02-18.6_ANU-2.3m_WiFeS_DEBASS.dat	tns_2025bei_2025-02-18.6_ANU-2.3m_WiFeS_DEBASS.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 244800 of Group ZTF
Previous RA, DEC: 11:42:59.161, -16:47:44.85 (175.746504706, -16.7957917647)
Updated RA, DEC: 11:42:59.164, -16:47:44.74 (175.7465178, -16.7957614)

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