2025xpx | Transient Name Server

RA/DEC (2000)

01:32:22.187 +25:17:40.84

23.0924469571 +25.2946764541

Type

SN Ia

Redshift

0.06

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-09-15 02:10:02.784

TNS AT

Y

Public

Y

Discovery Mag

19.92

Filter

wide-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
	22077	2025-09-22 09:08:41	UH88 / SNIFS	1800	M. E. Huber		SCAT	tns_2025xpx_2025-09-22_09-08-41_UH88_SNIFS_SCAT.dat		Object			Poor dichroic correction for ~490-525 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 Poor dichroic correction for ~490-525 nm

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

wide-ATLAS

ATLAS-TDO_ATLAS-05

2025-09-14 00:07:20 - 2025-09-15 02:10:03

2460932.50509 - 2460933.59031

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
517444	2025-09-15 02:10:03	2460933.59031	19.92	0.208	19.86	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot
517443	2025-09-14 00:07:20	2460932.50509			19.58	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-08-24 01:35:40 - 2025-09-15 23:45:15

2460911.566429 - 2460934.489758

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
517986	2025-09-15 23:45:15	2460934.489758	19.3	0.19		ABMag	L-GOTO	GOTO-N_GOTO-2	90
517985	2025-08-24 01:35:40	2460911.566429			19.6	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

w-P1

PS2_GPC2

2025-11-08 10:10:00 - 2025-11-08 10:10:00

2460987.92361 - 2460987.92361

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
546506	2025-11-08 10:10:00	2460987.92361	20.05	0.06	22	ABMag	w-P1	PS2_GPC2	45	Robot

r-ZTF

P48_ZTF-Cam

2025-09-15 09:34:26 - 2025-09-15 09:34:26

2460933.898912 - 2460933.898912

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
517493	2025-09-15 09:34:26	2460933.898912	19.666	0.102215	20.63	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

g-ZTF

P48_ZTF-Cam

2025-09-09 08:40:37 - 2025-09-15 07:08:13

2460927.8615394 - 2460933.7973727

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
517492	2025-09-15 07:08:13	2460933.7973727	19.7471	0.131563	20.6734	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF
517491	2025-09-09 08:40:37	2460927.8615394			19.3982	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF

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
285213	2025-12-31 16:57:15	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	01:32:22.187	+25:17:40.84	2025-11-08 10:09:59.904	20.05	w-P1	PSN		PS25mak	Pan-STARRS			N
270424	2025-09-17 09:02:12	GOTO_bot	G. Ramsay, K. Ackley, M. Dyer et al.	GOTO	GOTO	01:32:22.216	+25:17:41.01	2025-09-15 23:45:15.264	19.3	L-GOTO	Other		GOTO25hda	GOTO			N
270214	2025-09-15 16:37:05	ALeRCE	A. Munoz-Arancibia, G. Pignata, F.E. Bauer et al.	ALeRCE	ZTF	01:32:22.175	+25:17:40.90	2025-09-15 07:08:13.001	19.7471	g-ZTF	PSN	SDSS J013222.82+251737.2	ZTF25abqopkf	ZTF	Early SN candidate (r-rise > 0.08+-0.01 mag/day) 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/ZTF25abqopkf		N
270197	2025-09-15 15:34:21	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	01:32:22.171	+25:17:40.42	2025-09-15 02:10:02.784	19.92	wide-ATLAS	PSN		ATLAS25lkm	ATLAS		2025TNSTR3705....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

22077

2025-09-22 18:53:24

Mark Huber

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

SCAT

SN Ia

0.06

1

ATLAS, SCAT

Spectrum matches type Ia SN a few days before maximum light. Classification, redshift and age from template cross-correlation with SNID (Blondin and Tonry 2007)

2025TNSCR3814....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
22077	2025-09-22 09:08:41	UH88 / SNIFS	1800	M. E. Huber		SCAT	tns_2025xpx_2025-09-22_09-08-41_UH88_SNIFS_SCAT.dat		Object			Poor dichroic correction for ~490-525 nm

Comments

Object coordinates updated

Object coordinates updated according to AT-report 285213 of Group Pan-STARRS
Previous RA, DEC: 01:32:22.175, +25:17:40.90 (23.092393966822, +25.294693994543)
Updated RA, DEC: 01:32:22.187, +25:17:40.84 (23.0924469571, +25.2946764541)

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Object coordinates updated

Object coordinates updated according to AT-report 270214 of Group ZTF
Previous RA, DEC: 01:32:22.175, +25:17:40.90 (23.092393966822, +25.294693994543)
Updated RA, DEC: 01:32:22.175, +25:17:40.90 (23.092393966822, +25.294693994543)

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Object coordinates updated

Object coordinates updated according to AT-report 270214 of Group ZTF
Previous RA, DEC: 01:32:22.171, +25:17:40.42 (23.09238, +25.2945625)
Updated RA, DEC: 01:32:22.175, +25:17:40.90 (23.092393966822, +25.294693994543)

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SN 2025xpx

Spectra

Light curves

Comments

Object coordinates updated

Object coordinates updated

Object coordinates updated