2025gyf | Transient Name Server

RA/DEC (2000)

17:01:52.684 -23:24:43.31

255.4695167 -23.4120295

Type

SN Ia

Redshift

0.027632

Discovery Report Classification Report

Reporting Group

XOSS

Discovering Data Source

XOSS

Discovery Date

2025-04-06 20:42:57.888

TNS AT

Y

Public

Y

Host Name

WISEA J170153.13-232440.4

Host Redshift

0.027632

Discovery Mag

17.35

Filter

Clear-

Reporter/s

Ziyang Mai, Jianlin Xu, Mi Zhang, Guoyou Sun, Jiangao Ruan, Jingyuan Zhao, Wenjie Zhou, Yong Ma, Ye, Zhuoyang Chen (Xingming Obs.), Hanjie Tan (AUUK), Guangwei Wu (NAAA), Xing Gao, Ali Esamdin, Chunhai Bai, Yong Wang (XAO), on behalf of the KATS team

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
	20771	2025-04-15 09:49:24	P60 / SEDM	2160	SEDmRobot		ZTF	tns_2025gyf_2025-04-15_09-49-23.946087_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

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

BG-q-BlackGem

BG3_BlackGEM-Cam3

2025-04-08 09:07:20 - 2025-04-08 09:07:20

2460773.8800926 - 2460773.8800926

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
482201	2025-04-08 09:07:20	2460773.8800926	17.12	0.03	20.6	ABMag	BG-q-BlackGem	BG3_BlackGEM-Cam3	60	robotic

BG-q-BlackGem

BG2_BlackGEM-Cam2

2025-03-11 09:21:20 - 2025-03-11 09:21:20

2460745.8898148 - 2460745.8898148

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
482200	2025-03-11 09:21:20	2460745.8898148			21.18	ABMag	BG-q-BlackGem	BG2_BlackGEM-Cam2	60	robotic	[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-04-05 11:19:42 - 2025-04-05 11:19:42

2460770.9720139 - 2460770.9720139

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
481862	2025-04-05 11:19:42	2460770.9720139	17.1373	0.053578		ABMag	r-ZTF	P48_ZTF-Cam

g-ZTF

P48_ZTF-Cam

2025-04-11 11:34:37 - 2025-04-11 11:34:37

2460776.9823727 - 2460776.9823727

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
481863	2025-04-11 11:34:37	2460776.9823727	17.1895	0.0539034		ABMag	g-ZTF	P48_ZTF-Cam

Clear-

Other_Other

2025-04-06 20:42:58 - 2025-04-06 20:42:58

2460772.36317 - 2460772.36317

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
481216	2025-04-06 20:42:58	2460772.36317	17.35	0.17	19	VegaMag	Clear-	Other_Other	60	Xing Gao

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

251675

2025-04-15 13:01:54

BlackGEM_Bot1

F. Stoppa, H. Tranin, D. Pieterse et al.

BlackGEM

BlackGEM

17:01:52.683

-23:24:43.22

2025-04-08 09:07:20.000

17.12

BG-q-BlackGem

1

PSN

BGEM J170152.68-232443.2

BlackGEM

N

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025gyf_atrep_251675_BlackGEM.pdf	Finding Chart	2025-04-15 13:01:58	BlackGEM_Bot1

251444

2025-04-11 12:45:38

Fritz

Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.

ZTF

ZTF

17:01:52.684

-23:24:43.31

2025-04-05 11:19:42.000

17.1373

r-ZTF

PSN

ZTF25aalvqbq

ZTF

N

251151

2025-04-07 12:22:39

Mi Zhang

Ziyang Mai, Jianlin Xu, Mi Zhang et al.

XOSS

XOSS

17:01:52.650

-23:24:43.40

2025-04-06 20:42:57.888

17.35

Clear-

PSN

WISEA J170153.13-232440.4

KATS25G004

XOSS

SN candidate classified by XOSS. Details can be found at http://xjltp.china-vo.org/kats25g004.html

2025TNSTR1316....1M

N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

20771

2025-04-17 13:02:35

ZTF_Bot1

K. Das, S. Covarrubias, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration

ZTF

SN Ia

0.027632

1

ZTF

2025TNSCR1421....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
20771	2025-04-15 09:49:24	P60 / SEDM	2160	SEDmRobot		ZTF	tns_2025gyf_2025-04-15_09-49-23.946087_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 251444 of Group ZTF
Previous RA, DEC: 17:01:52.650, -23:24:43.40 (255.469375, -23.412056)
Updated RA, DEC: 17:01:52.684, -23:24:43.31 (255.4695167, -23.4120295)

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