2025qtu | Transient Name Server

RA/DEC (2000)

13:26:07.803 -04:54:24.05

201.5325141 -4.9066817

Type

SN Ic

Redshift

0.02

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-07-10 06:45:56.160

TNS AT

Y

Public

Y

Discovery Mag

18.751

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 (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

▌

ATLAS-STH_ATLAS-03_orange

▌

P48_ZTF-Cam_r

▌

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
	21554	2025-07-18 06:07:19	UH88 / SNIFS	1800	Desai and Bibian		SCAT	tns_2025qtu_2460874.75508_UH88_SNIFS_SCAT.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

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

orange-ATLAS

ATLAS-STH_ATLAS-03

2025-07-08 19:38:26 - 2025-07-08 19:38:26

2460865.31836 - 2460865.31836

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
501870	2025-07-08 19:38:26	2460865.31836			18.5	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-07-01 05:40:25 - 2025-08-09 03:55:57

2460857.7364005 - 2460896.6638542

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
507918	2025-08-09 03:55:57	2460896.6638542	18.4915	0.168321		ABMag	r-ZTF	P48_ZTF-Cam
507917	2025-08-08 03:52:43	2460895.6616088	18.2718	0.126036		ABMag	r-ZTF	P48_ZTF-Cam
507916	2025-07-01 05:40:25	2460857.7364005			20.5143	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-07-10 06:45:56 - 2025-07-10 06:45:56

2460866.7819 - 2460866.7819

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
501871	2025-07-10 06:45:56	2460866.7819	18.751	0.186	18.91	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	ADS Bibcode	Unreal	Auto classification
265316	2025-08-09 09:30:54	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	13:26:07.803	-04:54:24.05	2025-08-08 03:52:43.000	18.2718	r-ZTF		PSN		ZTF25abawdpf	ZTF				N
262083	2025-07-11 09:06:53	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	13:26:07.776	-04:54:24.27	2025-07-10 06:45:56.160	18.751	orange-ATLAS		PSN		ATLAS25hfu	ATLAS			2025TNSTR2646....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

21554

2025-07-18 10:02:50

Dhvanil Desai

Dhvanil Desai and Karely Bibian (on behalf of the SCAT team)

SCAT

SN Ic

0.02

1

SCAT

Redshift from NED.

2025TNSCR2763....1D

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
21554	2025-07-18 06:07:19	UH88 / SNIFS	1800	Desai and Bibian		SCAT	tns_2025qtu_2460874.75508_UH88_SNIFS_SCAT.dat		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 265316 of Group ZTF
Previous RA, DEC: 13:26:07.776, -04:54:24.27 (201.532402, -4.906742)
Updated RA, DEC: 13:26:07.803, -04:54:24.05 (201.5325141, -4.9066817)

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