2025kzh | Transient Name Server

RA/DEC (2000)

20:42:23.182 +13:44:12.94

310.596593333 +13.7369266667

Type

SN II

Redshift

0.01

Discovery Report Classification Report

Related AstroNotes: 2025-156

Reporting Group

GOTO

Discovering Data Source

GOTO

Discovery Date

2025-05-22 04:32:35.520

TNS AT

Y

Public

Y

Discovery Mag

18.16

Filter

L-GOTO

Reporter/s

D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

LAST_LAST-Cam_Clear

▌

GOTO-N_GOTO-2_L

▌

ATLAS-MLO_ATLAS-01_orange

▌

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
	21137	2025-05-25 08:17:58	ESO-NTT / EFOSC2-NTT	600	Stefano Pio Cosentino, Callum Francis Aster	Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee	ePESSTO+	tns_2025kzh_2025-05-25_08-17-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2025kzh_2025-05-25_08-17-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.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

Clear-

LAST_LAST-Cam

2024-07-05 20:37:24 - 2025-05-27 22:36:25

2460497.35931 - 2460823.44196

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
492207	2025-05-27 22:36:25	2460823.44196	18.07			ABMag	Clear-	LAST_LAST-Cam	400
492206	2024-07-05 20:37:24	2460497.35931			20.91	ABMag	Clear-	LAST_LAST-Cam	3520		[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-05-14 03:43:13 - 2025-05-22 04:32:36

2460809.655014 - 2460817.689297

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
489592	2025-05-22 04:32:36	2460817.689297	18.16	0.07		ABMag	L-GOTO	GOTO-N_GOTO-2	180
489591	2025-05-14 03:43:13	2460809.655014			18.7	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-05-20 14:13:21 - 2025-05-20 14:13:21

2460816.0926 - 2460816.0926

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
490835	2025-05-20 14:13:21	2460816.0926	18.609	0.118	19.37	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-05-19 14:42:27 - 2025-05-19 14:42:27

2460815.11281 - 2460815.11281

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
490834	2025-05-19 14:42:27	2460815.11281			19.04	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
257053	2025-05-28 12:52:30	LAST_Bot1	R. Konno (WIS),E. A. Zimmerman (WIS),A. Horowicz (WIS) et al.	LAST	LAST	20:42:23.200	+13:44:12.31	2025-05-27 22:36:25.344	18.07	Clear-		PSN			LAST				N
256351	2025-05-24 09:17:12	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	20:42:23.182	+13:44:12.94	2025-05-20 14:13:20.640	18.609	orange-ATLAS		PSN		ATLAS25fhw	ATLAS				N
255714	2025-05-22 05:22:31	GOTO_bot	D. O'Neill,K. Ackley,M. Dyer et al.	GOTO	GOTO	20:42:23.191	+13:44:12.73	2025-05-22 04:32:35.520	18.16	L-GOTO		Other		GOTO25cvz	GOTO			2025TNSTR1894....1O	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

21137

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+

SN II

0.01

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
21137	2025-05-25 08:17:58	ESO-NTT / EFOSC2-NTT	600	Stefano Pio Cosentino, Callum Francis Aster	Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee	ePESSTO+	tns_2025kzh_2025-05-25_08-17-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2025kzh_2025-05-25_08-17-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 256351 of Group ATLAS
Previous RA, DEC: 20:42:23.191, +13:44:12.73 (310.596629, +13.73687)
Updated RA, DEC: 20:42:23.182, +13:44:12.94 (310.596593333, +13.7369266667)

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