2025yiu | Transient Name Server

RA/DEC (2000)

10:04:06.111 +45:02:09.28

151.0254609 +45.0359117

Type

SN Ia

Redshift

0.023453

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-09-23 14:53:17.376

TNS AT

Y

Public

Y

Discovery Mag

17.495

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, P. J. Broda (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

▌

GOTO-N_GOTO-2_L

▌

P48_ZTF-Cam_g

▌

ATLAS-MLO_ATLAS-01_orange

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
	22163	2025-10-06 11:41:46	P60 / SEDM	2700	SEDmRobot		ZTF	tns_2025yiu_2025-10-06_11-41-45.969831_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-N_GOTO-2

2025-06-13 21:13:18 - 2025-09-26 05:51:00

2460840.384244 - 2460944.743751

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
520261	2025-09-26 05:51:00	2460944.743751	17.78	0.04		ABMag	L-GOTO	GOTO-N_GOTO-2	360
520260	2025-06-13 21:13:18	2460840.384244			18.6	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-10-02 12:08:15 - 2025-10-02 12:08:15

2460951.0057292 - 2460951.0057292

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
521914	2025-10-02 12:08:15	2460951.0057292	18.5838	0.0776487	20.2693	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-06-24 07:31:05 - 2025-09-23 14:53:17

2460850.81325 - 2460942.12034

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
519370	2025-09-23 14:53:17	2460942.12034	17.495	0.067	18.82	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot
519369	2025-06-24 07:31:05	2460850.81325			19.32	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[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	Related files	AT Type	Host name	Internal name	Assoc. Groups	End prop. period	Remarks	ADS Bibcode	Unreal	Auto classification
272340	2025-10-02 16:40:19	ALeRCE	A. Munoz-Arancibia,G. Pignata,F.E. Bauer et al.	ALeRCE	ZTF	10:04:06.111	+45:02:09.28	2025-10-02 12:08:15.003	18.5838	g-ZTF		PSN	SDSS J100404.79+450206.0	ZTF25abvejtn	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/ZTF25abvejtn		N
271450	2025-09-26 12:03:52	GOTO_bot	D. O'Neill,K. Ackley,M. Dyer et al.	GOTO	GOTO	10:04:06.143	+45:02:09.08	2025-09-26 05:51:00.000	17.78	L-GOTO		Other		GOTO25hsw	GOTO				N
271046	2025-09-23 20:14:30	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	10:04:06.084	+45:02:09.40	2025-09-23 14:53:17.376	17.495	orange-ATLAS		PSN		ATLAS25lvw	ATLAS			2025TNSTR3817....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

22163

2025-10-06 19:18:59

ZTF_Bot1

S. Rose, K. Das, A. Mehla, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration

ZTF

SN Ia

0.023453

1

ZTF

2025TNSCR4028....1R

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
22163	2025-10-06 11:41:46	P60 / SEDM	2700	SEDmRobot		ZTF	tns_2025yiu_2025-10-06_11-41-45.969831_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 272340 of Group ZTF
Previous RA, DEC: 10:04:06.084, +45:02:09.40 (151.025351429, +45.0359442857)
Updated RA, DEC: 10:04:06.111, +45:02:09.28 (151.0254609, +45.0359117)

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