2025iww | Transient Name Server

RA/DEC (2000)

14:56:15.284 -05:54:37.35

224.063685114 -5.91037613268

Type

SN Ia

Redshift

0.1

Discovery Report Classification Report

Related AstroNotes: 2025-176

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-04-22 09:08:24.999

TNS AT

Y

Public

Y

Discovery Mag

21.2746

Filter

g-ZTF

Reporter/s

Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF

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
	21239	2025-06-01 22:37:21	NOT / ALFOSC	1300	Gerard Garcia-Moreno, Mathias Gort	Gerard Garcia-Moreno	BlackGEM	tns_2025iww_2460828.4426_NOT_ALFOSC_BlackGEM.txt	tns_2025iww_2460828.4426_NOT_ALFOSC_BlackGEM.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

L-GOTO

GOTO-S_GOTO-3

2025-04-20 14:14:11 - 2025-05-06 14:30:27

2460786.093184 - 2460802.104476

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
487981	2025-05-06 14:30:27	2460802.104476	19.56	0.16		ABMag	L-GOTO	GOTO-S_GOTO-3	180
487980	2025-04-20 14:14:11	2460786.093184			19.2	ABMag	L-GOTO	GOTO-S_GOTO-3	90		[Last non detection]

BG-q-BlackGem

BG4_BlackGEM-Cam4

2025-05-20 02:05:32 - 2025-05-20 02:05:32

2460815.5871759 - 2460815.5871759

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
490947	2025-05-20 02:05:32	2460815.5871759	19.42	0.08	21.29	ABMag	BG-q-BlackGem	BG4_BlackGEM-Cam4	60	robotic

BG-q-BlackGem

BG3_BlackGEM-Cam3

2025-05-13 04:51:24 - 2025-05-13 04:51:24

2460808.7023611 - 2460808.7023611

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
490946	2025-05-13 04:51:24	2460808.7023611			18.87	ABMag	BG-q-BlackGem	BG3_BlackGEM-Cam3	60	robotic	[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-04-22 09:07:44 - 2025-05-01 08:29:51

2460787.8803704 - 2460796.8540625

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
485250	2025-05-01 08:29:51	2460796.8540625	19.7923	0.156634		ABMag	g-ZTF	P48_ZTF-Cam
485249	2025-04-22 09:08:25	2460787.8808449	21.2746	0.307109		ABMag	g-ZTF	P48_ZTF-Cam
485248	2025-04-22 09:07:44	2460787.8803704			20.4743	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

w-P1

PS1_GPC1

2025-04-28 09:52:57 - 2025-04-28 09:52:57

2460793.91177 - 2460793.91177

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
495310	2025-04-28 09:52:57	2460793.91177	20.48	0.06	22	ABMag	w-P1	PS1_GPC1	45	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

258645

2025-06-15 13:26:25

PS1_Bot1

K. C. Chambers,T. de Boer,J. Fairlamb et al.

Pan-STARRS

Pan-STARRS

14:56:15.284

-05:54:37.35

2025-04-28 09:52:56.928

20.48

w-P1

PSN

PS25dlg

Pan-STARRS

N

256411

2025-05-24 15:01:09

BlackGEM_Bot1

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

BlackGEM

BlackGEM

14:56:15.304

-05:54:37.63

2025-05-20 02:05:32.000

19.42

BG-q-BlackGem

1

PSN

BGEM J145615.30-055437.6

BlackGEM

N

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025iww_atrep_256411_BlackGEM.pdf	Finding Chart	2025-05-24 15:01:11	BlackGEM_Bot1

254865

2025-05-12 14:53:29

GOTO_bot

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

GOTO

GOTO

14:56:15.306

-05:54:37.38

2025-05-06 14:30:27.072

19.56

L-GOTO

Other

GOTO25ckw

GOTO

N

253267

2025-05-01 09:14:55

Fritz

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

ZTF

ZTF

14:56:15.269

-05:54:37.35

2025-04-22 09:08:24.999

21.2746

g-ZTF

PSN

ZTF25aaoqyej

ZTF

2025TNSTR1616....1S

N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

21239

2025-06-06 22:04:33

Nadejda Blagorodnova Mujortova

Nadejda Blagorodnova Mujortova

BlackGEM

SN Ia

0.1

1

BlackGEM, CET-3PO

Good match to normal SN Ia and 91bg-like post-peak.

2025TNSCR2126....1M

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
21239	2025-06-01 22:37:21	NOT / ALFOSC	1300	Gerard Garcia-Moreno, Mathias Gort	Gerard Garcia-Moreno	BlackGEM	tns_2025iww_2460828.4426_NOT_ALFOSC_BlackGEM.txt	tns_2025iww_2460828.4426_NOT_ALFOSC_BlackGEM.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 258645 of Group Pan-STARRS
Previous RA, DEC: 14:56:15.269, -05:54:37.35 (224.0636207, -5.9103762)
Updated RA, DEC: 14:56:15.284, -05:54:37.35 (224.063685114, -5.91037613268)

Log in or register to post comments

Log in or register to post comments