2025aavv | Transient Name Server

RA/DEC (2000)

18:00:43.647 +43:02:16.89

270.181861075 +43.0380253875

Type

SN Ia

Redshift

0.05094

Discovery Report Classification Report

Related AstroNotes: 2025-305

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-10-17 02:41:12.998

TNS AT

Y

Public

Y

Discovery Mag

19.1736

Filter

r-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
	22314	2025-10-28 02:27:52	P60 / SEDM	2160	SEDmRobot	auto	ZTF	tns_2025aavv_2025-10-28_02-27-51.564705_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
	22275	2025-10-22 21:18:49	NOT / ALFOSC	1000	Emily Sageser, Jouni Valkjärvi, Emma Johtela, Uliana Pylypenko		None	tns_2025aavv_2025-10-22_21-18-49_NOT_ALFOSC_None.ascii	tns_2025aavv_2025-10-22_21-18-49_NOT_ALFOSC_None.fits	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

2025-09-16 20:35:10 - 2025-10-20 21:09:16

2460935.357748 - 2460969.381435

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
526233	2025-10-20 21:09:16	2460969.381435	18.06	0.05		ABMag	L-GOTO	GOTO-N_GOTO-2	180
526232	2025-09-16 20:35:10	2460935.357748			19.6	ABMag	L-GOTO	GOTO-N_GOTO-2	135		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-10-12 03:23:42 - 2025-10-19 02:39:40

2460960.6414583 - 2460967.6108796

4

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
524737	2025-10-19 02:39:40	2460967.6108796	18.4518	0.066603		ABMag	r-ZTF	P48_ZTF-Cam
524736	2025-10-17 02:41:13	2460965.611956	19.1736	0.098348		ABMag	r-ZTF	P48_ZTF-Cam
526616	2025-10-17 02:41:13	2460965.611956	19.1736	0.098348	20.3947	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
526615	2025-10-12 03:23:42	2460960.6414583			20.368	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

g-ZTF

P48_ZTF-Cam

2025-10-12 05:47:33 - 2025-10-12 05:47:33

2460960.7413542 - 2460960.7413542

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
524735	2025-10-12 05:47:33	2460960.7413542			20.203	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

cyan-ATLAS

ATLAS-MLO_ATLAS-01

2025-10-17 05:42:44 - 2025-10-17 05:42:44

2460965.73801 - 2460965.73801

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
525119	2025-10-17 05:42:44	2460965.73801			18.81	ABMag	cyan-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-10-20 05:51:14 - 2025-10-20 05:51:14

2460968.74391 - 2460968.74391

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
525120	2025-10-20 05:51:14	2460968.74391	18.409	0.085	19.3	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
274691	2025-10-24 18:19:37	Fink	Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker	Fink	ZTF	18:00:43.647	+43:02:16.89	2025-10-17 02:41:12.998	19.1736	r-ZTF		PSN		ZTF25abxfpgs	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25abxfpgs		N
274517	2025-10-23 15:08:54	GOTO_bot	G. Ramsay, D. O'Neill, K. Ackley et al.	GOTO	GOTO	18:00:43.671	+43:02:17.08	2025-10-20 21:09:15.552	18.06	L-GOTO		Other		GOTO25iwc	GOTO				N
274030	2025-10-20 08:36:38	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	18:00:43.634	+43:02:17.16	2025-10-20 05:51:13.824	18.409	orange-ATLAS		PSN		ATLAS25myv	ATLAS				N
273842	2025-10-19 02:56:17	BTSbot_bot	Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF	ZTF	ZTF	18:00:43.653	+43:02:17.01	2025-10-17 02:41:12.998	19.1736	r-ZTF		PSN		ZTF25abxfpgs	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).	2025TNSTR4192....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

22314

2025-10-28 03:13:26

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

0.05094

1

ZTF

2025TNSCR4339....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
22314	2025-10-28 02:27:52	P60 / SEDM	2160	SEDmRobot	auto	ZTF	tns_2025aavv_2025-10-28_02-27-51.564705_P60_SEDM_ZTF.ascii		Object

22275

2025-10-23 12:42:06

Christina Humina

Emily Sageser, Jouni Valkjärvi, Emma Johtela, Uliana Pylypenko, Christina Humina, Tuomas Kangas, Erkki Kankare (University of Turku), Niko Pyykkinen (NOT)

None

SN Ia

0.052

1

Classification was done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) as part of a remote observing course at the University of Turku. AT 2025aavv was a good match for both normal Ia and Ia-91T-like before peak. Redshift from spectral match.

2025TNSCR4261....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
22275	2025-10-22 21:18:49	NOT / ALFOSC	1000	Emily Sageser, Jouni Valkjärvi, Emma Johtela, Uliana Pylypenko		None	tns_2025aavv_2025-10-22_21-18-49_NOT_ALFOSC_None.ascii	tns_2025aavv_2025-10-22_21-18-49_NOT_ALFOSC_None.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 274691 of Group ZTF
Previous RA, DEC: 18:00:43.653, +43:02:17.01 (270.1818856, +43.0380595)
Updated RA, DEC: 18:00:43.647, +43:02:16.89 (270.181861075, +43.0380253875)

Log in or register to post comments

Log in or register to post comments