2025fev | Transient Name Server

RA/DEC (2000)

11:05:29.814 +35:14:09.69

166.374225454 +35.236024945

Type

SN Ia

Redshift

0.048391

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-03-22 09:33:46.944

TNS AT

Y

Public

Y

Discovery Mag

18.505

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, J. Tweddle (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
	20682	2025-04-02 20:52:37	Other / Other	6005	R Leadbeater	R Leadbeater	None	tns_2025fev_2025-04-02_20-52-37_Other_Other_None.dat	tns_2025fev_2025-04-02_20-52-37_Other_Other_None.fit	Object			R~130 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm
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 R~130 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

Clear-

LAST_LAST-Cam

2024-12-24 00:32:52 - 2025-03-25 19:05:59

2460668.52282 - 2460760.29582

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
478935	2025-03-25 19:05:59	2460760.29582	18.42			ABMag	Clear-	LAST_LAST-Cam	400
478934	2024-12-24 00:32:52	2460668.52282			21.85	ABMag	Clear-	LAST_LAST-Cam	5340		[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-04-04 20:36:18 - 2025-04-04 20:36:18

2460770.358539 - 2460770.358539

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
480795	2025-04-04 20:36:18	2460770.358539	17.44	0.06		ABMag	L-GOTO	GOTO-N_GOTO-2	180

L-GOTO

GOTO-N_GOTO-1

2025-03-21 02:01:59 - 2025-03-21 02:01:59

2460755.584706 - 2460755.584706

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
480794	2025-03-21 02:01:59	2460755.584706			19	ABMag	L-GOTO	GOTO-N_GOTO-1	180		[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-03-21 10:26:09 - 2025-03-22 09:33:47

2460755.93483 - 2460756.89846

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
477766	2025-03-22 09:33:47	2460756.89846	18.505	0.111	19.57	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot
477765	2025-03-21 10:26:09	2460755.93483			18.43	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

i-P1

PS1_GPC1

2025-04-15 09:59:36 - 2025-04-15 09:59:36

2460780.91639 - 2460780.91639

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
495323	2025-04-15 09:59:36	2460780.91639	18.63	0.06	20.7	ABMag	i-P1	PS1_GPC1	45	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
258658	2025-06-15 13:39:25	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	11:05:29.814	+35:14:09.69	2025-04-15 09:59:36.096	18.63	i-P1		PSN		PS25dlt	Pan-STARRS				N
250938	2025-04-04 20:54:58	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	11:05:29.842	+35:14:09.78	2025-04-04 20:36:17.856	17.44	L-GOTO		Other		GOTO25bpv	GOTO				N
249902	2025-03-25 19:34:35	LAST_Bot1	R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS) et al.	LAST	LAST	11:05:29.803	+35:14:09.16	2025-03-25 19:05:58.848	18.42	Clear-		PSN			LAST				N
249291	2025-03-22 16:49:59	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	11:05:29.824	+35:14:09.58	2025-03-22 09:33:46.944	18.505	orange-ATLAS		PSN		ATLAS25cwz	ATLAS			2025TNSTR1082....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

20682

2025-04-03 00:15:08

Robin Leadbeater

Robin Leadbeater

None

SN Ia

0.048391

1

1

SNID ( Blondin, S. & Tonry, J. L. 2007. ApJ, 666, 1024) gives a good fit to type 1a supernovae near maximum at the redshift of the probable host SDSS J110529.70+351417.9. The quoted redshift is that of the host from NED

2025TNSCR1262....1L

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025fev_atrep_20682.png	best match from SNID	2025-04-03 00:15:08	Robin Leadbeater

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
20682	2025-04-02 20:52:37	Other / Other	6005	R Leadbeater	R Leadbeater	None	tns_2025fev_2025-04-02_20-52-37_Other_Other_None.dat	tns_2025fev_2025-04-02_20-52-37_Other_Other_None.fit	Object			R~130 spectrum obtained using modified ALPY spectrograph at Three Hills Observatory as described here http://www.threehillsobservatory.co.uk/astro/spectroscopy_20.htm

Comments

Object coordinates updated

Object coordinates updated according to AT-report 258658 of Group Pan-STARRS
Previous RA, DEC: 11:05:29.824, +35:14:09.58 (166.374267143, +35.2359942857)
Updated RA, DEC: 11:05:29.814, +35:14:09.69 (166.374225454, +35.236024945)

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