2025smn | Transient Name Server

RA/DEC (2000)

22:15:37.675 -30:35:01.96

333.906979653 -30.5838774873

Type

SN Ia

Redshift

0.086

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-07-26 05:05:01.248

TNS AT

Public

Discovery Mag

18.36

Filter

cyan-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

▌

PS2_GPC2_w

▌

ATLAS-CHL_ATLAS-04_cyan

▌

P48_ZTF-Cam_r

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
	21686	2025-08-02 09:55:58	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025smn_2025-08-02_09-55-57.837337_P60_SEDM_ZTF.ascii		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

w-P1

PS2_GPC2

2025-07-27 11:19:16 - 2025-07-27 11:19:16

2460883.97171 - 2460883.97171

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
506942	2025-07-27 11:19:16	2460883.97171	18.72	0.02	22	ABMag	w-P1	PS2_GPC2	45	Robot

cyan-ATLAS

ATLAS-CHL_ATLAS-04

2025-07-25 06:06:53 - 2025-07-26 05:05:01

2460881.75478 - 2460882.71182

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
505717	2025-07-26 05:05:01	2460882.71182	18.36	0.19	18.24	ABMag	cyan-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot
505716	2025-07-25 06:06:53	2460881.75478			17.8	ABMag	cyan-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot	[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-07-20 09:26:05 - 2025-07-29 10:28:02

2460876.8931134 - 2460885.9361343

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
506612	2025-07-29 10:28:02	2460885.9361343	18.6983	0.081628		ABMag	r-ZTF	P48_ZTF-Cam
506611	2025-07-20 09:26:05	2460876.8931134			19.9807	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

AT Reports

ID	Time received (UT)	Sender	Reporter/s	Reporting group	Disc. Data Source	RA	DEC	Discovery date (UT)	Discovery Mag.	Filter	AT Type	Internal name	Assoc. Groups	ADS Bibcode	Unreal
264722	2025-08-02 13:49:03	PS1_Bot1	K. C. Chambers,T. de Boer,J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	22:15:37.675	-30:35:01.96	2025-07-27 11:19:15.744	18.72	w-P1	PSN	PS25frl	Pan-STARRS		N
264578	2025-08-01 11:52:53	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	22:15:37.666	-30:35:01.98	2025-07-29 10:28:02.003	18.6983	r-ZTF	PSN	ZTF25abfmdqj	ZTF		N
264144	2025-07-28 09:55:03	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	22:15:37.671	-30:35:01.95	2025-07-26 05:05:01.248	18.36	cyan-ATLAS	PSN	ATLAS25ijf	ATLAS	2025TNSTR2947....1T	N

Classification Reports

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

21686

2025-08-02 10:47:35

ZTF_Bot1

C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore

ZTF

SN Ia

0.086

ZTF

2025TNSCR3047....1F

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
21686	2025-08-02 09:55:58	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025smn_2025-08-02_09-55-57.837337_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 264722 of Group Pan-STARRS
Previous RA, DEC: 22:15:37.666, -30:35:01.98 (333.9069396, -30.5838831)
Updated RA, DEC: 22:15:37.675, -30:35:01.96 (333.906979653, -30.5838774873)

Object coordinates updated

Object coordinates updated according to AT-report 264578 of Group ZTF
Previous RA, DEC: 22:15:37.671, -30:35:01.95 (333.906962105, -30.5838736842)
Updated RA, DEC: 22:15:37.666, -30:35:01.98 (333.9069396, -30.5838831)

SN 2025smn

Spectra

Light curves

Comments

Object coordinates updated

Object coordinates updated