2025nea | Transient Name Server

RA/DEC (2000)

22:33:57.535 +01:06:28.79

338.4897275375 +1.107998025

Type

SN II

Redshift

0.0388

Discovery Report Classification Report

Related AstroNotes: 2025-236

Reporting Group

SGLF

Discovering Data Source

ZTF

Discovery Date

2025-06-09 09:18:13.000

TNS AT

Y

Public

Y

Host Name

SDSS J223357.50+010629.4

Host Redshift

0.03882443

Discovery Mag

19.26

Filter

r-ZTF

Reporter/s

I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, C. Jaén-Martín (ULL), F. Poidevin (IAC and ULL), C. Jiménez Ángel (GRANTECAN), Z. Delgado-González (ULL), R. Shirley (MPE), R. Marques-Chaves (Univ. of Geneva), and S. Geier (GRANTECAN & IAC) on behalf of SGLF

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

LAST_LAST-Cam_Clear

▌

ATLAS-STH_ATLAS-03_orange

▌

P48_ZTF-Cam_r

▌

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
	21634	2025-07-21 09:55:18	Lick-3m / KAST		Aleksandra Bochenek, Zoe McGrath, Daniel Perley	Bochenek	ZTF	tns_2025nea_2025-07-21_09-55-18_Lick-3m_KAST_ZTF.txt		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

2024-07-04 21:45:55 - 2025-08-31 23:16:26

2460496.40689 - 2460919.46975

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
514912	2025-08-31 23:16:26	2460919.46975	19.6			ABMag	Clear-	LAST_LAST-Cam	400
514911	2024-07-04 21:45:55	2460496.40689			21.92	ABMag	Clear-	LAST_LAST-Cam	7480		[Last non detection]

orange-ATLAS

ATLAS-STH_ATLAS-03

2025-06-11 00:58:35 - 2025-06-11 00:58:35

2460837.54068 - 2460837.54068

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
495137	2025-06-11 00:58:35	2460837.54068			18.62	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-06-06 11:05:23 - 2025-06-09 09:18:13

2460832.9620718 - 2460835.8876505

4

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
494328	2025-06-09 09:18:13	2460835.8876505	19.26	0.147		ABMag	r-ZTF	P48_ZTF-Cam	30	ZTFbot
497307	2025-06-09 09:18:13	2460835.8876505	19.2601	0.147213	19.3501	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
494327	2025-06-06 11:05:23	2460832.9620718			20.434	ABMag	r-ZTF	P48_ZTF-Cam	30	ZTFbot	[Last non detection]
497306	2025-06-06 11:05:23	2460832.9620718			20.4336	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-06-14 12:45:28 - 2025-06-14 12:45:28

2460841.03157 - 2460841.03157

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
495138	2025-06-14 12:45:28	2460841.03157	18.581	0.392	18.64	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
268939	2025-09-01 15:49:52	LAST_Bot1	E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al.	LAST	LAST	22:33:57.526	+01:06:28.81	2025-08-31 23:16:26.400	19.6	Clear-		PSN			LAST				N
259602	2025-06-21 18:17:32	Fink	Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker	Fink	ZTF	22:33:57.535	+01:06:28.79	2025-06-09 09:18:13.003	19.2601	r-ZTF		PSN		ZTF25aauhbec	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aauhbec		N
258510	2025-06-14 18:45:10	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	22:33:57.532	+01:06:29.63	2025-06-14 12:45:27.648	18.581	orange-ATLAS		PSN		ATLAS25gdh	ATLAS				N
258079	2025-06-09 15:44:15	Ismael Perez-Fournon	I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia et al.	SGLF	ZTF	22:33:57.526	+01:06:28.93	2025-06-09 09:18:13.000	19.26	r-ZTF		PSN	SDSS J223357.50+010629.4	ZTF25aauhbec	ZTF		SN candidate discovered using the public ZTF alerts, the LSST/ZTF brokers, and our SGLF filters. ZTF light curve available at the LSST/ZTF brokers, e.g.: https://lasair-ztf.lsst.ac.uk/objects/ZTF25aauhbec/ https://alerce.online/object/ZTF25aauhbec https://antares.noirlab.edu/loci/ANT2025j0j7arzawk2m	2025TNSTR2157....1P	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

21634

2025-07-24 23:57:29

Daniel Perley

Daniel Perley (LJMU), Aleksandra Bochenek (LJMU), Zoe McGrath (LJMU), R. Michael Rich (UCLA)

ZTF

SN II

0.0388

1

ZTF

Redshift from narrow host emission lines. Classification established from a broad (~8000 km/s) P-cygni H-alpha profile.

2025TNSCR2882....1P

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
21634	2025-07-21 09:55:18	Lick-3m / KAST		Aleksandra Bochenek, Zoe McGrath, Daniel Perley	Bochenek	ZTF	tns_2025nea_2025-07-21_09-55-18_Lick-3m_KAST_ZTF.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 259602 of Group ZTF
Previous RA, DEC: 22:33:57.526, +01:06:28.93 (338.489692, +1.108036)
Updated RA, DEC: 22:33:57.535, +01:06:28.79 (338.4897275375, +1.107998025)

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