2025efb | Transient Name Server

RA/DEC (2000)

20:02:20.583 -20:13:48.37

300.585762 -20.230103

Type

SN Ib/c

Redshift

0.019524

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-03-12 08:09:43.776

TNS AT

Y

Public

Y

Discovery Mag

17.567

Filter

orange-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), 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 (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
	21213	2025-05-26 10:26:05	P200 / NGPS		Yu-Jing Qin, Oleksandra Pyshna, Gaici Li	Yu-Jing Qin	ZTF	tns_2025efb_2025-05-26_10-26-05_P200_NGPS_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

L-GOTO

GOTO-S_GOTO-4

2024-10-25 12:04:36 - 2025-04-02 18:56:25

2460609.003194 - 2460768.289181

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
480640	2025-04-02 18:56:25	2460768.289181	19.06	0.14		ABMag	L-GOTO	GOTO-S_GOTO-4	180
480639	2024-10-25 12:04:36	2460609.003194			19.5	ABMag	L-GOTO	GOTO-S_GOTO-4	180		[Last non detection]

orange-ATLAS

ATLAS-CHL_ATLAS-04

2025-03-12 08:09:44 - 2025-03-12 08:09:44

2460746.84009 - 2460746.84009

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
475133	2025-03-12 08:09:44	2460746.84009	17.567	0.132	18.05	ABMag	orange-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot

orange-ATLAS

ATLAS-STH_ATLAS-03

2024-11-29 18:59:12 - 2024-11-29 18:59:12

2460644.29111 - 2460644.29111

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
475132	2024-11-29 18:59:12	2460644.29111			18.46	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

BG-q-BlackGem

BG4_BlackGEM-Cam4

2024-10-14 23:59:20 - 2024-10-14 23:59:20

2460598.499537 - 2460598.499537

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
482232	2024-10-14 23:59:20	2460598.499537			20.43	ABMag	BG-q-BlackGem	BG4_BlackGEM-Cam4	60	robotic	[Last non detection]

BG-q-BlackGem

BG3_BlackGEM-Cam3

2025-04-15 08:52:06 - 2025-04-15 08:52:06

2460780.8695139 - 2460780.8695139

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
482233	2025-04-15 08:52:06	2460780.8695139	19.24	0.12	19.96	ABMag	BG-q-BlackGem	BG3_BlackGEM-Cam3	60	robotic

r-ZTF

P48_ZTF-Cam

2025-04-22 12:02:32 - 2025-05-01 10:31:33

2460788.0017593 - 2460796.9385764

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
485319	2025-05-01 10:31:33	2460796.9385764	19.5198	0.150579		ABMag	r-ZTF	P48_ZTF-Cam
485318	2025-04-22 12:02:32	2460788.0017593	19.4617	0.15284		ABMag	r-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

253302

2025-05-01 19:34:03

Fritz

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

ZTF

ZTF

20:02:20.574

-20:13:48.30

2025-04-22 12:02:32.003

19.4617

r-ZTF

PSN

ZTF25aapenec

ZTF

N

251694

2025-04-15 17:52:08

BlackGEM_Bot1

P. Groot,H. Tranin,F. Stoppa et al.

BlackGEM

BlackGEM

20:02:20.583

-20:13:48.37

2025-04-15 08:52:06.000

19.24

BG-q-BlackGem

1

PSN

BGEM J200220.58-201348.3

BlackGEM

N

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025efb_atrep_251694_BlackGEM.pdf	Finding Chart	2025-04-15 17:52:10	BlackGEM_Bot1

250850

2025-04-04 08:43:43

GOTO_bot

D. O'Neill,K. Ackley,M. Dyer et al.

GOTO

GOTO

20:02:20.572

-20:13:48.71

2025-04-02 18:56:25.152

19.06

L-GOTO

Other

GOTO25bkj

GOTO

N

247801

2025-03-12 16:02:01

ATLAS_Bot1

J. Tonry,L. Denneau,H. Weiland et al.

ATLAS

ATLAS

20:02:20.570

-20:13:48.27

2025-03-12 08:09:43.776

17.567

orange-ATLAS

PSN

ATLAS25cqj

ATLAS

2025TNSTR.963....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

21213

2025-06-02 20:35:23

ZTF_Bot1

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

ZTF

SN Ib/c

0.019524

1

ZTF

2025TNSCR2079....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
21213	2025-05-26 10:26:05	P200 / NGPS		Yu-Jing Qin, Oleksandra Pyshna, Gaici Li	Yu-Jing Qin	ZTF	tns_2025efb_2025-05-26_10-26-05_P200_NGPS_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 251694 of Group BlackGEM
Previous RA, DEC: 20:02:20.570, -20:13:48.27 (300.585708333, -20.230075)
Updated RA, DEC: 20:02:20.583, -20:13:48.37 (300.585762, -20.230103)

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