2025sux | Transient Name Server

RA/DEC (2000)

14:09:35.449 +54:45:02.47

212.397703865 +54.7506870872

Type

SN Ia

Redshift

0.039

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-07-31 06:55:55.776

TNS AT

Y

Public

Y

Discovery Mag

18.764

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), M. R. Alarcón, J. Licandro, P. Nichita (IAC), 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

▌

ATLAS-TDO_ATLAS-05_wide

▌

GOTO-N_GOTO-2_L

▌

PS2_GPC2_i

▌

ATLAS-HKO_ATLAS-02_orange

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
	21799	2025-08-15 00:00:00	Lick-3m / KAST		Kishore Patra	Kishore Patra	UCSC	tns_2025sux_2025-08-15_Lick-3m_KAST_UCSC.flm		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

wide-ATLAS

ATLAS-TDO_ATLAS-05

2025-07-27 22:28:20 - 2025-07-27 22:28:20

2460884.43634 - 2460884.43634

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
506522	2025-07-27 22:28:20	2460884.43634			18.68	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-07-21 21:38:48 - 2025-08-24 21:10:12

2460878.401949 - 2460912.382079

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
512104	2025-08-24 21:10:12	2460912.382079	18.15	0.04		ABMag	L-GOTO	GOTO-N_GOTO-2	360
512103	2025-07-21 21:38:48	2460878.401949			19.6	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

i-P1

PS2_GPC2

2025-08-03 06:26:51 - 2025-08-03 06:26:51

2460890.76865 - 2460890.76865

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
507212	2025-08-03 06:26:51	2460890.76865	18.48	0.09	20.7	ABMag	i-P1	PS2_GPC2	27	Robot

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-07-31 06:55:56 - 2025-07-31 06:55:56

2460887.78884 - 2460887.78884

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
506523	2025-07-31 06:55:56	2460887.78884	18.764	0.137	19.22	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	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
267558	2025-08-24 21:27:19	GOTO_bot	D. O'Neill,K. Ackley,M. Dyer et al.	GOTO	GOTO	14:09:35.508	+54:45:02.34	2025-08-24 21:10:11.712	18.15	L-GOTO		Other		GOTO25ghq	GOTO				N
264861	2025-08-03 14:03:23	YSE_Bot1	D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al.	YSE	Pan-STARRS	14:09:35.449	+54:45:02.47	2025-08-03 06:26:51.360	18.48	i-P1		PSN		PS25fta	Pan-STARRS				N
264533	2025-07-31 23:52:29	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	14:09:35.501	+54:45:02.52	2025-07-31 06:55:55.776	18.764	orange-ATLAS		PSN		ATLAS25iqp	ATLAS			2025TNSTR2999....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

21799

2025-08-16 10:15:15

Kishore C. Patra

Kishore C. Patra, Kirsty Taggart, Kyle Davis, Ryan J. Foley (UCSC)

UCSC

SN Ia

0.039

1

UCSC

We measure Si II 6355 velocity of -12,900  km/s. The redshift was determined using narrow emission lines from the host galaxy.

2025TNSCR3235....1P

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
21799	2025-08-15 00:00:00	Lick-3m / KAST		Kishore Patra	Kishore Patra	UCSC	tns_2025sux_2025-08-15_Lick-3m_KAST_UCSC.flm		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 264861 of Group Pan-STARRS
Previous RA, DEC: 14:09:35.501, +54:45:02.52 (212.39792125, +54.75069875)
Updated RA, DEC: 14:09:35.449, +54:45:02.47 (212.397703865, +54.7506870872)

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