2025kfh | Transient Name Server

RA/DEC (2000)

16:39:32.352 +15:59:15.81

249.884800934 +15.9877260865

Type

CV

Redshift

0

Discovery Report Classification Report

Related AstroNotes: 2025-156

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-05-09 07:44:02.002

TNS AT

Y

Public

Y

Discovery Mag

17.9674

Filter

r-ZTF

Reporter/s

Nabeel Rehemtulla (CIERA, NU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

LAST_LAST-Cam_Clear

▌

PS2_GPC2_y

▌

P48_ZTF-Cam_r

▌

P48_ZTF-Cam_g

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
	21131	2025-05-25 05:15:47	ESO-NTT / EFOSC2-NTT	300	Stefano Pio Cosentino, Callum Francis Aster	Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee	ePESSTO+	tns_2025kfh_2025-05-25_05-15-47_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2025kfh_2025-05-25_05-15-47_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), ▌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

2024-07-01 21:27:49 - 2025-05-25 20:33:52

2460493.39432 - 2460821.35685

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
491550	2025-05-25 20:33:52	2460821.35685	16.5			ABMag	Clear-	LAST_LAST-Cam	400
491549	2024-07-01 21:27:49	2460493.39432			21.55	ABMag	Clear-	LAST_LAST-Cam	4340		[Last non detection]

y-P1

PS2_GPC2

2025-05-17 12:24:48 - 2025-05-17 12:24:48

2460813.01722 - 2460813.01722

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
488999	2025-05-17 12:24:48	2460813.01722	16.45	0.07	18.3	ABMag	y-P1	PS2_GPC2	27	Robot

r-ZTF

P48_ZTF-Cam

2025-05-03 10:05:25 - 2025-05-09 07:44:02

2460798.9204282 - 2460804.8222454

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
487552	2025-05-09 07:44:02	2460804.8222454	17.9674	0.052793		ABMag	r-ZTF	P48_ZTF-Cam
487551	2025-05-03 10:05:25	2460798.9204282			20.7791	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-05-09 10:38:52 - 2025-05-09 10:38:52

2460804.9436574 - 2460804.9436574

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
487553	2025-05-09 10:38:52	2460804.9436574	18.2615	0.0724875		ABMag	g-ZTF	P48_ZTF-Cam

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
256747	2025-05-25 23:21:40	LAST_Bot1	E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al.	LAST	LAST	16:39:32.364	+15:59:15.98	2025-05-25 20:33:51.840	16.5	Clear-		PSN			LAST				N
255419	2025-05-19 12:16:43	YSE_Bot1	D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al.	YSE	Pan-STARRS	16:39:32.352	+15:59:15.81	2025-05-17 12:24:47.808	16.45	y-P1		PSN		PS25cub	Pan-STARRS				N
254627	2025-05-09 11:50:03	Fritz	Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al.	ZTF	ZTF	16:39:32.365	+15:59:15.84	2025-05-09 07:44:02.002	17.9674	r-ZTF		PSN		ZTF25aaptoxz	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).	2025TNSTR1731....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

21131

2025-05-25 16:22:09

ePESSTOplus_Bot1

Stefano Pio Cosentino, Callum Francis Aster, Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, A. Horowicz on behalf of ePESSTO+

ePESSTO+

CV

0

1

ePESSTO+

2025TNSCR1963....1C

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
21131	2025-05-25 05:15:47	ESO-NTT / EFOSC2-NTT	300	Stefano Pio Cosentino, Callum Francis Aster	Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee	ePESSTO+	tns_2025kfh_2025-05-25_05-15-47_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2025kfh_2025-05-25_05-15-47_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 255419 of Group Pan-STARRS
Previous RA, DEC: 16:39:32.365, +15:59:15.84 (249.884856, +15.9877321)
Updated RA, DEC: 16:39:32.352, +15:59:15.81 (249.884800934, +15.9877260865)

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