2025joi | Transient Name Server

RA/DEC (2000)

21:42:25.091 +23:01:48.13

325.604545815 +23.0300361442

Type

SN Ia

Redshift

0.07

Discovery Report Classification Report

Reporting Group

ALeRCE

Discovering Data Source

ZTF

Discovery Date

2025-05-03 10:41:42.000

TNS AT

Y

Public

Y

Host Name

SDSS J214225.26+230147.1

Discovery Mag

19.4765

Filter

r-ZTF

Reporter/s

F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker

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
	21050	2025-05-15 00:00:00	LT / SPRAT	1200	Cillian O'Donnell, Kate Maguire, Umut Burgaz, Christine Collins, Ravi Seth, CG Touchard-Paxton, Jacobus Terwel, Thomas Muller Br	Cillian O'Donnell	TCD	tns_2025joi_2025-05-15_LT_SPRAT_TCD.text		Object			source was blended, spectrum may contain a little contamination, but was mostly resolvable.
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 source was blended, spectrum may contain a little contamination, but was mostly resolvable.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

L-GOTO

GOTO-N_GOTO-2

2025-04-25 05:07:51 - 2025-05-03 04:34:56

2460790.713793 - 2460798.690932

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
487417	2025-05-03 04:34:56	2460798.690932	19.24	0.17		ABMag	L-GOTO	GOTO-N_GOTO-2	180
487416	2025-04-25 05:07:51	2460790.713793			19.7	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-05-03 10:41:42 - 2025-05-03 10:41:42

2460798.945625 - 2460798.945625

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
486446	2025-05-03 10:41:42	2460798.945625	19.4765	0.128713	20.2847	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

g-ZTF

P48_ZTF-Cam

2025-04-30 11:28:05 - 2025-04-30 11:28:05

2460795.9778356 - 2460795.9778356

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
486445	2025-04-30 11:28:05	2460795.9778356			20.4408	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF

cyan-ATLAS

ATLAS-MLO_ATLAS-01

2025-05-04 13:48:59 - 2025-05-04 13:48:59

2460800.07568 - 2460800.07568

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
486600	2025-05-04 13:48:59	2460800.07568	19.187	0.169	19.45	ABMag	cyan-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-05-03 14:58:34 - 2025-05-03 14:58:34

2460799.124 - 2460799.124

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
486599	2025-05-03 14:58:34	2460799.124			18.62	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot	[Last non detection]

w-P1

PS1_GPC1

2025-05-24 13:32:22 - 2025-05-24 13:32:22

2460820.06414 - 2460820.06414

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
495163	2025-05-24 13:32:22	2460820.06414	19.27	0.03	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
258528	2025-06-14 19:46:35	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	21:42:25.091	+23:01:48.13	2025-05-24 13:32:21.696	19.27	w-P1		PSN		PS25dhw	Pan-STARRS				N
254569	2025-05-08 10:57:23	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	21:42:25.091	+23:01:48.01	2025-05-03 04:34:56.352	19.24	L-GOTO		Other		GOTO25cjj	GOTO				N
253950	2025-05-04 21:00:51	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	21:42:25.094	+23:01:48.18	2025-05-04 13:48:58.752	19.187	cyan-ATLAS		PSN		ATLAS25epd	ATLAS				N
253851	2025-05-03 16:29:48	ALeRCE	F. Forster, F.E. Bauer, G. Pignata et al.	ALeRCE	ZTF	21:42:25.089	+23:01:47.75	2025-05-03 10:41:42.000	19.4765	r-ZTF		PSN	SDSS J214225.26+230147.1	ZTF25aapnvqx	ZTF		SN candidate classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25aapnvqx	2025TNSTR1640....1F	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

21050

2025-05-16 13:15:33

Cillian O'Donnell

Cillian O'Donnell, Kate Maguire, Umut Burgaz, Christine Collins, Ravi Seth, CG Touchard-Paxton, Jacobus Terwel, Thomas Muller Bravo

TCD

SN Ia

0.07

1

TCD

snid classification and redshift

2025TNSCR1812....1O

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
21050	2025-05-15 00:00:00	LT / SPRAT	1200	Cillian O'Donnell, Kate Maguire, Umut Burgaz, Christine Collins, Ravi Seth, CG Touchard-Paxton, Jacobus Terwel, Thomas Muller Br	Cillian O'Donnell	TCD	tns_2025joi_2025-05-15_LT_SPRAT_TCD.text		Object			source was blended, spectrum may contain a little contamination, but was mostly resolvable.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 258528 of Group Pan-STARRS
Previous RA, DEC: 21:42:25.089, +23:01:47.75 (325.6045368, +23.0299304)
Updated RA, DEC: 21:42:25.091, +23:01:48.13 (325.604545815, +23.0300361442)

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