2025xzc | Transient Name Server

RA/DEC (2000)

22:10:57.968 -25:04:30.26

332.7415329 -25.0750728

Type

SN Ic

Redshift

0.0169

Discovery Report Classification Report

Related AstroNotes: 2025-287

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-09-15 09:23:16.224

TNS AT

Y

Public

Y

Discovery Mag

18.246

Filter

cyan-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill, P. J. Broda (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)

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
	22212	2025-10-10 21:28:35	LT / SPRAT	1600	LTRobot	D. Perley	ZTF	tns_2025xzc_2025-10-10_21-28-35_LT_SPRAT_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
	22058	2025-09-20 05:12:28	ESO-NTT / EFOSC2-NTT	780	A. Sahu, B. Warwick	M. Pursiainen	ePESSTO+	tns_2025xzc_2025-09-20_05-12-28_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2025xzc_2025-09-20_05-12-28_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

2025-09-23 18:48:17 - 2025-09-24 21:02:55

2460942.28353 - 2460943.37703

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
519823	2025-09-24 21:02:55	2460943.37703	17.53			ABMag	Clear-	LAST_LAST-Cam	400
519822	2025-09-23 18:48:17	2460942.28353			19.56	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

orange-ATLAS

ATLAS-STH_ATLAS-03

2025-09-13 21:52:32 - 2025-09-13 21:52:32

2460932.41148 - 2460932.41148

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
518492	2025-09-13 21:52:32	2460932.41148			19.59	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

BG-q-BlackGem

BG3_BlackGEM-Cam3

2025-10-18 00:46:48 - 2025-10-18 00:46:48

2460966.5325 - 2460966.5325

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
525203	2025-10-18 00:46:48	2460966.5325	17.56	0.05	20.83	ABMag	BG-q-BlackGem	BG3_BlackGEM-Cam3	60	robotic

BG-q-BlackGem

ML1_MeerLICHT-Cam

2021-06-24 09:44:01 - 2021-06-24 09:44:01

2459389.9055671 - 2459389.9055671

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
525202	2021-06-24 09:44:01	2459389.9055671			30.5	ABMag	BG-q-BlackGem	ML1_MeerLICHT-Cam	60	robotic	[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-09-14 08:26:47 - 2025-09-21 07:33:13

2460932.8519329 - 2460939.8147338

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
518874	2025-09-21 07:33:13	2460939.8147338	17.2912	0.0575293		ABMag	g-ZTF	P48_ZTF-Cam
518873	2025-09-15 06:29:58	2460933.7708102	18.3005	0.0600067		ABMag	g-ZTF	P48_ZTF-Cam
518872	2025-09-14 08:26:47	2460932.8519329			19.4458	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2025-09-15 09:23:16 - 2025-09-15 09:23:16

2460933.89116 - 2460933.89116

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
518493	2025-09-15 09:23:16	2460933.89116	18.246	0.1	19.32	ABMag	cyan-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
274064	2025-10-20 12:58:02	BlackGEM_Bot1	P. Groot,H. Tranin,F. Stoppa et al.	BlackGEM	BlackGEM	22:10:57.985	-25:04:30.16	2025-10-18 00:46:48.000	17.56	BG-q-BlackGem		PSN		BGEM J221057.98-250430.2	BlackGEM				N
271255	2025-09-25 04:13:47	LAST_Bot1	E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al.	LAST	LAST	22:10:58.029	-25:04:30.52	2025-09-24 21:02:55.392	17.53	Clear-		PSN			LAST				N
270830	2025-09-21 07:50:35	BTSbot_bot	Nabeel Rehemtulla (CIERA,NU),Wynn Jacobson-Galán (Caltech) et al.	ZTF	ZTF	22:10:57.968	-25:04:30.26	2025-09-15 06:29:58.001	18.3005	g-ZTF		PSN		ZTF22abbtqnp	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).		N
270658	2025-09-19 10:06:00	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	22:10:57.970	-25:04:30.27	2025-09-15 09:23:16.224	18.246	cyan-ATLAS		PSN		ATLAS25lrk	ATLAS			2025TNSTR3766....1T	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

22212

2025-10-14 19:51:13

ZTF_Bot1

K. Das, D. Perley (LJMU), A. Mehla, K. R. Hinds, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration

ZTF

SN Ic

0.0169

1

ZTF

2025TNSCR4128....1D

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
22212	2025-10-10 21:28:35	LT / SPRAT	1600	LTRobot	D. Perley	ZTF	tns_2025xzc_2025-10-10_21-28-35_LT_SPRAT_ZTF.ascii		Object

22058

2025-09-20 15:24:18

ePESSTOplus_Bot1

A. Sahu, B. Warwick, M. Pursiainen, O. Yaron on behalf of ePESSTO+

ePESSTO+

SN

0.0169

1

ePESSTO+

2025TNSCR3785....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
22058	2025-09-20 05:12:28	ESO-NTT / EFOSC2-NTT	780	A. Sahu, B. Warwick	M. Pursiainen	ePESSTO+	tns_2025xzc_2025-09-20_05-12-28_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2025xzc_2025-09-20_05-12-28_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 270830 of Group ZTF
Previous RA, DEC: 22:10:57.970, -25:04:30.27 (332.741542667, -25.075074)
Updated RA, DEC: 22:10:57.968, -25:04:30.26 (332.7415329, -25.0750728)

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