2025uax | Transient Name Server

RA/DEC (2000)

16:30:22.772 +53:44:00.96

247.594882836 +53.7336001801

Type

SN Ia

Redshift

0.075

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-08-16 08:10:35.616

TNS AT

Y

Public

Y

Discovery Mag

19.822

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

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
	21910	2025-08-29 00:00:00	Lick-3m / KAST		Ravjit Kaur		UCSC	tns_2025uax_2025-08-29_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

2025-08-11 23:32:32 - 2025-08-11 23:32:32

2460899.48093 - 2460899.48093

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
509257	2025-08-11 23:32:32	2460899.48093			17.89	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

r-P1

PS2_GPC2

2025-08-20 06:15:09 - 2025-08-20 06:15:09

2460907.76052 - 2460907.76052

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
511024	2025-08-20 06:15:09	2460907.76052	19.04	0.05	20.6	ABMag	r-P1	PS2_GPC2	27	Robot

L-GOTO

GOTO-N_GOTO-1

2025-08-13 23:48:16 - 2025-08-16 22:22:22

2460901.491846 - 2460904.432199

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
509411	2025-08-16 22:22:22	2460904.432199	19.54	0.16		ABMag	L-GOTO	GOTO-N_GOTO-1	360
509410	2025-08-13 23:48:16	2460901.491846			19.6	ABMag	L-GOTO	GOTO-N_GOTO-1	360		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-08-15 04:19:11 - 2025-08-15 04:19:11

2460902.6799884 - 2460902.6799884

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
509329	2025-08-15 04:19:11	2460902.6799884	20.179	0.182582	20.6906	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

g-ZTF

P48_ZTF-Cam

2025-08-13 08:09:13 - 2025-08-15 05:10:22

2460900.8397338 - 2460902.7155324

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
509330	2025-08-15 05:10:22	2460902.7155324	20.0811	0.182987	20.7429	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF
509328	2025-08-13 08:09:13	2460900.8397338			19.5919	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-08-16 08:10:36 - 2025-08-16 08:10:36

2460903.84069 - 2460903.84069

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
509258	2025-08-16 08:10:36	2460903.84069	19.822	0.143	20.3	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	110	Robot

AT Reports

ID	Time received (UT)	Sender	Reporter/s	Reporting group	Disc. Data Source	RA	DEC	Discovery date (UT)	Discovery Mag.	Filter	AT Type	Host name	Internal name	Assoc. Groups	Remarks	ADS Bibcode	Unreal
266984	2025-08-21 20:21:00	YSE_Bot1	D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al.	YSE	Pan-STARRS	16:30:22.772	+53:44:00.96	2025-08-20 06:15:08.928	19.04	r-P1	PSN		PS25gtp	Pan-STARRS			N
266123	2025-08-16 23:06:39	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	16:30:22.810	+53:44:00.83	2025-08-16 22:22:22.080	19.54	L-GOTO	Other		GOTO25fvk	GOTO			N
266086	2025-08-16 15:58:46	ALeRCE	S. Jurado, F.E. Bauer, F. Forster et al.	ALeRCE	ZTF	16:30:22.833	+53:44:00.85	2025-08-15 04:19:10.998	20.179	r-ZTF	PSN	SDSS J163022.72+534401.2	ZTF25abiptzd	ZTF	SN candidate classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25abiptzd		N
266052	2025-08-16 14:57:11	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	16:30:22.807	+53:44:01.10	2025-08-16 08:10:35.616	19.822	orange-ATLAS	PSN		ATLAS25jol	ATLAS		2025TNSTR3226....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

21910

2025-08-29 21:31:46

Ravjit Kaur

Ravjit Kaur (UCSC), Ryan Foley (UCSC), Kyle Davis (UCSC)

UCSC

SN Ia

0.075

1

UCSC

When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. We measure a Si II 6355 absorption velocity of -10,600 km/s.

2025TNSCR3450....1K

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
21910	2025-08-29 00:00:00	Lick-3m / KAST		Ravjit Kaur		UCSC	tns_2025uax_2025-08-29_Lick-3m_KAST_UCSC.flm		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 266984 of Group Pan-STARRS
Previous RA, DEC: 16:30:22.833, +53:44:00.85 (247.59513937912, +53.733570310698)
Updated RA, DEC: 16:30:22.772, +53:44:00.96 (247.594882836, +53.7336001801)

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Object coordinates updated

Object coordinates updated according to AT-report 266086 of Group ZTF
Previous RA, DEC: 16:30:22.833, +53:44:00.85 (247.59513937912, +53.733570310698)
Updated RA, DEC: 16:30:22.833, +53:44:00.85 (247.59513937912, +53.733570310698)

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Object coordinates updated

Object coordinates updated according to AT-report 266086 of Group ZTF
Previous RA, DEC: 16:30:22.807, +53:44:01.10 (247.59503, +53.73364)
Updated RA, DEC: 16:30:22.833, +53:44:00.85 (247.59513937912, +53.733570310698)

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SN 2025uax

Spectra

Light curves

Comments

Object coordinates updated

Object coordinates updated

Object coordinates updated