2025alg | Transient Name Server

RA/DEC (2000)

13:11:46.381 -14:10:41.36

197.943254 -14.178156

Type

SN II

Redshift

0.04

Discovery Report Classification Report

Related AstroNotes: 2025-101

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-01-30 07:23:13.056

TNS AT

Y

Public

Y

Discovery Mag

18.985

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), 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 (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
	20652	2025-03-27 00:55:16	NOT / ALFOSC	1800	David Jones	Gerard Garcia Moreno	BlackGEM	tns_2025alg_2025-03-27_00-55-16_NOT_ALFOSC_BlackGEM_0.txt		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

2024-03-05 00:13:49 - 2025-03-30 22:36:54

2460374.5096 - 2460765.44229

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
480024	2025-03-30 22:36:54	2460765.44229	19.58			ABMag	Clear-	LAST_LAST-Cam	400
480023	2024-03-05 00:13:49	2460374.5096			21.16	ABMag	Clear-	LAST_LAST-Cam	2400		[Last non detection]

L-GOTO

GOTO-S_GOTO-4

2025-01-28 15:19:19 - 2025-01-28 15:19:19

2460704.138419 - 2460704.138419

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
467028	2025-01-28 15:19:19	2460704.138419			19.9	ABMag	L-GOTO	GOTO-S_GOTO-4	180		[Last non detection]

L-GOTO

GOTO-S_GOTO-3

2025-02-04 15:58:50 - 2025-02-04 15:58:50

2460711.165862 - 2460711.165862

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
467029	2025-02-04 15:58:50	2460711.165862	18.74	0.11		ABMag	L-GOTO	GOTO-S_GOTO-3	180

cyan-ATLAS

ATLAS-CHL_ATLAS-04

2025-01-28 08:11:31 - 2025-01-30 07:23:13

2460703.84133 - 2460705.80779

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
465520	2025-01-30 07:23:13	2460705.80779	18.985	0.126	19.5	ABMag	cyan-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot
465519	2025-01-28 08:11:31	2460703.84133			19.53	ABMag	cyan-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot	[Last non detection]

BG-q-BlackGem

BG4_BlackGEM-Cam4

2025-02-25 07:58:32 - 2025-02-25 07:58:32

2460731.8323148 - 2460731.8323148

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
471960	2025-02-25 07:58:32	2460731.8323148	18.92	0.06	21.17	ABMag	BG-q-BlackGem	BG4_BlackGEM-Cam4	60	robotic

BG-q-BlackGem

BG3_BlackGEM-Cam3

2025-01-28 07:40:54 - 2025-01-28 07:40:54

2460703.8200694 - 2460703.8200694

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
471959	2025-01-28 07:40:54	2460703.8200694			21.04	ABMag	BG-q-BlackGem	BG3_BlackGEM-Cam3	60	robotic	[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-02-04 10:00:11 - 2025-02-19 11:29:08

2460710.916794 - 2460725.9785648

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
469744	2025-02-19 11:29:08	2460725.9785648	18.862	0.141173		ABMag	r-ZTF	P48_ZTF-Cam
469743	2025-02-04 11:33:12	2460710.9813889	18.6584	0.0749266		ABMag	r-ZTF	P48_ZTF-Cam
469742	2025-02-04 10:00:11	2460710.916794			17.9745	ABMag	r-ZTF	P48_ZTF-Cam			[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

250462

2025-04-01 11:07:30

LAST_Bot1

R. Konno (WIS),E. A. Zimmerman (WIS),A. Horowicz (WIS) et al.

LAST

LAST

13:11:46.349

-14:10:41.53

2025-03-30 22:36:53.856

19.58

Clear-

PSN

LAST

N

246006

2025-02-25 20:28:02

BlackGEM_Bot1

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

BlackGEM

BlackGEM

13:11:46.380

-14:10:41.97

2025-02-25 07:58:32.000

18.92

BG-q-BlackGem

1

PSN

BGEM J131146.38-141041.9

BlackGEM

N

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025alg_atrep_246006_BlackGEM.pdf	Finding Chart	2025-02-25 20:28:04	BlackGEM_Bot1

245021

2025-02-19 12:22:28

Fritz

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

ZTF

ZTF

13:11:46.381

-14:10:41.36

2025-02-04 11:33:12.000

18.6584

r-ZTF

PSN

ZTF25aaetvgk

ZTF

N

243519

2025-02-04 22:31:08

GOTO_bot

D. O'Neill,G. Ramsay,K. Ackley et al.

GOTO

GOTO

13:11:46.365

-14:10:41.88

2025-02-04 15:58:50.304

18.74

L-GOTO

Other

GOTO25abd

GOTO

N

242903

2025-01-30 11:19:07

ATLAS_Bot1

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

ATLAS

ATLAS

13:11:46.367

-14:10:41.10

2025-01-30 07:23:13.056

18.985

cyan-ATLAS

PSN

ATLAS25bdp

ATLAS

2025TNSTR.411....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

20652

2025-03-27 22:11:13

Nadejda Blagorodnova Mujortova

Nadejda Blagorodnova (ICCUB), David Jones (IAC), Gerard García Moreno (ICCUB), Erez A. Zimmerman (WIS), Moses Mlangeni (UCT/SAAO), Marco A. Gómez-Muñoz (ICCUB), Hugo Tranin (ICCUB)

BlackGEM

SN II

0.04

1

BlackGEM, CET-3PO

2025TNSCR1185....1B

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
20652	2025-03-27 00:55:16	NOT / ALFOSC	1800	David Jones	Gerard Garcia Moreno	BlackGEM	tns_2025alg_2025-03-27_00-55-16_NOT_ALFOSC_BlackGEM_0.txt		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 245021 of Group ZTF
Previous RA, DEC: 13:11:46.367, -14:10:41.10 (197.943195, -14.1780833333)
Updated RA, DEC: 13:11:46.381, -14:10:41.36 (197.943254, -14.178156)

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