2025aggm | Transient Name Server

RA/DEC (2000)

07:41:57.661 +15:07:21.16

115.4902529 +15.1225452

Type

SN Ia

Redshift

0.07

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-12-09 09:50:38.688

TNS AT

Y

Public

Y

Discovery Mag

18.059

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland (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, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (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

▌

LAST_LAST-Cam_Clear

▌

P48_ZTF-Cam_r

▌

P48_ZTF-Cam_g

▌

ATLAS-HKO_ATLAS-02_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
	22563	2025-12-11 12:53:31	P60 / SEDM	2160	SEDmRobot	auto	ZTF	tns_2025aggm_2025-12-11_12-53-31.357610_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

Clear-

LAST_LAST-Cam

2025-11-27 23:31:34 - 2025-12-17 21:36:04

2461007.48025 - 2461027.40005

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
539993	2025-12-17 21:36:04	2461027.40005	18.01			ABMag	Clear-	LAST_LAST-Cam	400
539992	2025-11-27 23:31:34	2461007.48025			20.49	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-11-27 10:04:22 - 2025-12-11 11:03:21

2461006.9196991 - 2461020.9606597

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
537581	2025-12-11 11:03:21	2461020.9606597	17.8569	0.0489241		ABMag	r-ZTF	P48_ZTF-Cam
537579	2025-11-27 10:04:22	2461006.9196991			19.8912	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-11-27 10:58:03 - 2025-11-27 10:58:03

2461006.9569792 - 2461006.9569792

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
537580	2025-11-27 10:58:03	2461006.9569792	20.2452	0.146645		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-12-04 11:47:30 - 2025-12-09 09:50:39

2461013.99132 - 2461018.91017

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
537277	2025-12-09 09:50:39	2461018.91017	18.059	0.1	18.84	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
537276	2025-12-04 11:47:30	2461013.99132			18.38	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	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
281105	2025-12-18 08:30:07	LAST_Bot1	E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al.	LAST	LAST	07:41:57.643	+15:07:21.65	2025-12-17 21:36:04.320	18.01	Clear-		PSN			LAST				N
280039	2025-12-11 11:23:46	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	07:41:57.661	+15:07:21.16	2025-11-27 10:58:03.002	20.2452	g-ZTF		PSN		ZTF25acgqich	ZTF				N
279912	2025-12-10 16:59:34	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland (IfA et al.	ATLAS	ATLAS	07:41:57.661	+15:07:21.00	2025-12-09 09:50:38.688	18.059	orange-ATLAS		PSN		ATLAS25plj	ATLAS			2025TNSTR4906....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

22562

2025-12-11 13:37:37

ZTF_Bot1

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

ZTF

SN Ia

0.07

1

ZTF

2025TNSCR4933....1S

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
22563	2025-12-11 12:53:31	P60 / SEDM	2160	SEDmRobot	auto	ZTF	tns_2025aggm_2025-12-11_12-53-31.357610_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 280039 of Group ZTF
Previous RA, DEC: 07:41:57.661, +15:07:21.00 (115.490252174, +15.1224986957)
Updated RA, DEC: 07:41:57.661, +15:07:21.16 (115.4902529, +15.1225452)

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