2025afty | Transient Name Server

RA/DEC (2000)

00:34:05.697 +05:21:07.32

8.523737575 +5.3520342125

Type

SN Ia

Redshift

0.04

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-12-04 02:36:41.002

TNS AT

Y

Public

Y

Discovery Mag

18.124

Filter

g-ZTF

Reporter/s

Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), 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
	22530	2025-12-07 16:04:59	Lijiang-2.4m / YFOSC		Jujia Zhang		LiONS	tns_2025afty_2025-12-07_16-04-58.661_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
	22523	2025-12-06 00:00:00	UH88 / SNIFS		Sara Romagnoli		SCAT	tns_2025afty_2025-12-06_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

wide-ATLAS

ATLAS-TDO_ATLAS-05

2025-11-28 20:26:57 - 2025-11-28 20:26:57

2461008.35205 - 2461008.35205

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
538409	2025-11-28 20:26:57	2461008.35205			18.84	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

Clear-

LAST_LAST-Cam

2025-11-20 16:08:38 - 2025-12-08 15:48:39

2461000.17266 - 2461018.15878

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
536850	2025-12-08 15:48:39	2461018.15878	17.5			ABMag	Clear-	LAST_LAST-Cam	400
536849	2025-11-20 16:08:38	2461000.17266			20	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-12-02 20:35:02 - 2025-12-02 20:35:02

2461012.357658 - 2461012.357658

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
536160	2025-12-02 20:35:02	2461012.357658	18.85	0.2		ABMag	L-GOTO	GOTO-N_GOTO-2	180

L-GOTO

GOTO-N_GOTO-1

2025-11-26 21:15:44 - 2025-11-26 21:15:44

2461006.385925 - 2461006.385925

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
536159	2025-11-26 21:15:44	2461006.385925			20	ABMag	L-GOTO	GOTO-N_GOTO-1	135		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-11-27 04:06:06 - 2025-12-04 04:00:01

2461006.6709028 - 2461013.6666782

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
535910	2025-12-04 04:00:01	2461013.6666782	18.1225	0.0880639		ABMag	r-ZTF	P48_ZTF-Cam
535908	2025-11-27 04:06:06	2461006.6709028			19.7354	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-11-27 02:33:12 - 2025-12-04 02:36:41

2461006.6063889 - 2461013.6088079

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
535909	2025-12-04 02:36:41	2461013.6088079	18.124	0.153195		ABMag	g-ZTF	P48_ZTF-Cam
538836	2025-12-04 02:36:41	2461013.6088079	18.124	0.153195	18.8294	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
538835	2025-11-27 02:33:12	2461006.6063889			19.3036	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-12-03 07:53:55 - 2025-12-03 07:53:55

2461012.82911 - 2461012.82911

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
538410	2025-12-03 07:53:55	2461012.82911	18.224	0.158	18.43	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	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
280571	2025-12-14 19:15:00	Fink	Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al.	Fink	ZTF	00:34:05.697	+05:21:07.32	2025-12-04 02:36:41.003	18.124	g-ZTF		PSN		ZTF19abpqfvo	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF19abpqfvo		N
280367	2025-12-13 15:43:00	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland (IfA et al.	ATLAS	ATLAS	00:34:05.701	+05:21:07.43	2025-12-03 07:53:55.104	18.224	orange-ATLAS		PSN		ATLAS25poz	ATLAS				N
279702	2025-12-08 16:07:40	LAST_Bot1	R. Konno (WIS),E. A. Zimmerman (WIS),A. Horowicz (WIS) et al.	LAST	LAST	00:34:05.657	+05:21:06.92	2025-12-08 15:48:38.592	17.5	Clear-		PSN			LAST				N
279398	2025-12-05 20:20:01	GOTO_bot	G. Ramsay,D. O'Neill,K. Ackley et al.	GOTO	GOTO	00:34:05.690	+05:21:06.96	2025-12-02 20:35:01.824	18.85	L-GOTO		Other		GOTO25lbp	GOTO				N
279299	2025-12-04 04:13:06	BTSbot_bot	Nabeel Rehemtulla (CIERA,NU),Wynn Jacobson-Galán (Caltech) et al.	ZTF	ZTF	00:34:05.697	+05:21:07.45	2025-12-04 02:36:41.002	18.124	g-ZTF		PSN		ZTF19abpqfvo	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).	2025TNSTR4837....1R	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

22529

2025-12-08 08:20:54

Liping Li

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

LiONS

SN Ia

0.04

1

LiONS

The spectrum obtained by LJT matches that of a young normal SN Ia (e.g., SN 2005eu at -7d and SN 2006cc at -10d via SNID). The redshift is obtained by the H_alpha line shown in the spectrum.

2025TNSCR4884....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
22530	2025-12-07 16:04:59	Lijiang-2.4m / YFOSC		Jujia Zhang		LiONS	tns_2025afty_2025-12-07_16-04-58.661_Lijiang-2.4m_YFOSC_LiONS.dat		Object

22522

2025-12-07 06:33:20

Sara Romagnoli

Sara Romagnoli

SCAT

SN Ia

1

SCAT

2025TNSCR4868....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
22523	2025-12-06 00:00:00	UH88 / SNIFS		Sara Romagnoli		SCAT	tns_2025afty_2025-12-06_UH88_SNIFS_SCAT.dat		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 280571 of Group ZTF
Previous RA, DEC: 00:34:05.697, +05:21:07.45 (8.5237386, +5.3520689)
Updated RA, DEC: 00:34:05.697, +05:21:07.32 (8.523737575, +5.3520342125)

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