2025dyo | Transient Name Server

RA/DEC (2000)

15:37:28.339 +05:49:11.31

234.3680776 +5.8198087

Type

SN Ia

Redshift

0.039

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-03-08 13:05:32.064

TNS AT

Y

Public

Y

Discovery Mag

18.084

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), 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
	20556	2025-03-10 19:17:16	Lijiang-2.4m / YFOSC		Jujia Zhang		LiONS	tns_2025dyo_2025-03-10_19-17-16.482_Lijiang-2.4m_YFOSC_LiONS.dat		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
	20553	2025-03-10 12:19:13	P60 / SEDM	2160	SEDmRobot	auto	ZTF	tns_2025dyo_2025-03-10_12-19-12.552141_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

L-GOTO

GOTO-S_GOTO-4

2025-03-14 16:11:30 - 2025-03-14 16:11:30

2460749.174649 - 2460749.174649

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
475917	2025-03-14 16:11:30	2460749.174649	17.29	0.09		ABMag	L-GOTO	GOTO-S_GOTO-4	180

L-GOTO

GOTO-S_GOTO-3

2025-02-24 18:40:22 - 2025-02-24 18:40:22

2460731.278028 - 2460731.278028

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
475916	2025-02-24 18:40:22	2460731.278028			19.9	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

orange-ATLAS

ATLAS-CHL_ATLAS-04

2025-03-05 07:09:47 - 2025-03-05 07:09:47

2460739.79846 - 2460739.79846

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
474624	2025-03-05 07:09:47	2460739.79846			19.11	ABMag	orange-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot	[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-02-26 12:28:42 - 2025-03-10 11:29:14

2460733.0199306 - 2460744.9786343

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
474709	2025-03-10 11:29:14	2460744.9786343	17.7669	0.0493421		ABMag	r-ZTF	P48_ZTF-Cam
474707	2025-02-26 12:28:42	2460733.0199306			20.3749	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-03-09 11:01:33 - 2025-03-09 11:01:33

2460743.9594097 - 2460743.9594097

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
474708	2025-03-09 11:01:33	2460743.9594097	17.9253	0.084098		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-03-08 13:05:32 - 2025-03-08 13:05:32

2460743.04551 - 2460743.04551

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
474625	2025-03-08 13:05:32	2460743.04551	18.084	0.065	19.54	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	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	Bibcode	Unreal	Auto classification
248203	2025-03-14 18:02:20	GOTO_bot	A. Kumar,G. Ramsay,K. Ackley et al.	GOTO	GOTO	15:37:28.342	+05:49:11.47	2025-03-14 16:11:29.760	17.29	L-GOTO		Other		GOTO25bbb	GOTO				N
247565	2025-03-10 11:54:51	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	15:37:28.339	+05:49:11.31	2025-03-09 11:01:32.998	17.9253	g-ZTF		PSN		ZTF25aaiushx	ZTF				N
247532	2025-03-10 00:17:35	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	15:37:28.341	+05:49:11.36	2025-03-08 13:05:32.064	18.084	orange-ATLAS		PSN		ATLAS25cnz	ATLAS			2025TNSTR.938....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

20556

2025-03-11 02:08:36

Liping Li

Liping Li, Qian Zhai, Jujia Zhang (YNAO); Xiaofeng Wang(THU)

LiONS

SN Ia

0.039

1

LiONS

The spectrum obtained by LJT is similar to that of an SN Ia at a week before the peak (e.g., SN 1998aq at -9d, SN 2006lf at -7d, via SNID fitting).

2025TNSCR.961....1L

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
20556	2025-03-10 19:17:16	Lijiang-2.4m / YFOSC		Jujia Zhang		LiONS	tns_2025dyo_2025-03-10_19-17-16.482_Lijiang-2.4m_YFOSC_LiONS.dat		Object

20553

2025-03-10 13:02:38

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

0.039

1

ZTF

2025TNSCR.946....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
20553	2025-03-10 12:19:13	P60 / SEDM	2160	SEDmRobot	auto	ZTF	tns_2025dyo_2025-03-10_12-19-12.552141_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 247565 of Group ZTF
Previous RA, DEC: 15:37:28.341, +05:49:11.36 (234.368085833, +5.81982291667)
Updated RA, DEC: 15:37:28.339, +05:49:11.31 (234.3680776, 5.8198087)

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