2025smd | Transient Name Server

RA/DEC (2000)

17:47:18.140 +29:16:08.57

266.825581827 +29.2690483975

Type

SN Ia

Redshift

0.121

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-07-26 04:34:35.996

TNS AT

Y

Public

Y

Discovery Mag

20.1829

Filter

g-ZTF

Reporter/s

Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF

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
	21768	2025-08-12 04:36:50	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025smd_2025-08-12_04-36-50.325718_P60_SEDM_ZTF_0.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
	21766	2025-08-12 04:36:50	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025smd_2025-08-12_04-36-50.325718_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

wide-ATLAS

ATLAS-TDO_ATLAS-05

2025-07-28 00:59:02 - 2025-07-28 00:59:02

2460884.541 - 2460884.541

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
505867	2025-07-28 00:59:02	2460884.541	19.025	0.11	19.91	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot

L-GOTO

GOTO-N_GOTO-2

2025-07-14 23:31:48 - 2025-08-31 21:18:20

2460871.480423 - 2460919.387726

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
514687	2025-08-31 21:18:20	2460919.387726	19.1	0.16		ABMag	L-GOTO	GOTO-N_GOTO-2	360
514686	2025-07-14 23:31:48	2460871.480423			19	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-07-24 06:12:29 - 2025-07-24 06:12:29

2460880.758669 - 2460880.758669

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
505670	2025-07-24 06:12:29	2460880.758669			20.466	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-07-26 04:34:36 - 2025-07-28 04:36:34

2460882.6906944 - 2460884.6920602

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
505672	2025-07-28 04:36:34	2460884.6920602	19.6796	0.123676		ABMag	g-ZTF	P48_ZTF-Cam
505671	2025-07-26 04:34:36	2460882.6906944	20.1829	0.174005		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-07-27 11:01:51 - 2025-07-27 11:01:51

2460883.95962 - 2460883.95962

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
505866	2025-07-27 11:01:51	2460883.95962			19.4	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot	[Last non detection]

i-P1

PS1_GPC1

2025-08-05 09:11:12 - 2025-08-05 09:11:12

2460892.88278 - 2460892.88278

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
508804	2025-08-05 09:11:12	2460892.88278	18.93	0.09	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
268829	2025-09-01 04:57:23	GOTO_bot	M. Pursiainen,G. Ramsay,K. Ackley et al.	GOTO	GOTO	17:47:18.151	+29:16:08.81	2025-08-31 21:18:19.872	19.1	L-GOTO		Other		GOTO25gqb	GOTO				N
265838	2025-08-14 17:36:07	PS1_Bot1	K. C. Chambers,T. de Boer,J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	17:47:18.140	+29:16:08.57	2025-08-05 09:11:12.192	18.93	i-P1		PSN		PS25gip	Pan-STARRS				N
264210	2025-07-29 10:38:03	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	17:47:18.172	+29:16:08.74	2025-07-28 00:59:02.400	19.025	wide-ATLAS		PSN		ATLAS25ikk	ATLAS				N
264123	2025-07-28 06:38:15	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	17:47:18.131	+29:16:08.42	2025-07-26 04:34:35.996	20.1829	g-ZTF		PSN		ZTF25abdzkae	ZTF			2025TNSTR2956....1S	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

21768

2025-08-12 06:05:36

ZTF_Bot1

S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SN Ia

0.121

1

ZTF

2025TNSCR3174....1C

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
21768	2025-08-12 04:36:50	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025smd_2025-08-12_04-36-50.325718_P60_SEDM_ZTF_0.ascii		Object

21766

2025-08-12 05:29:05

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

0.2991

1

ZTF

2025TNSCR3172....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
21766	2025-08-12 04:36:50	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025smd_2025-08-12_04-36-50.325718_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 265838 of Group Pan-STARRS
Previous RA, DEC: 17:47:18.131, +29:16:08.42 (266.8255455, +29.2690067)
Updated RA, DEC: 17:47:18.140, +29:16:08.57 (266.825581827, +29.2690483975)

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