2024wal | Transient Name Server

RA/DEC (2000)

02:42:59.468 +11:57:28.15

40.7477818027 +11.9578202105

Type

SN Ia

Redshift

0.053

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2024-09-23 09:27:36.002

TNS AT

Y

Public

Y

Discovery Mag

18.9925

Filter

i-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
	18402	2024-09-30 09:55:03	FTN / FLOYDS-N	3600	Las Cumbres Observatory	Megan Newsome	Global SN Project	tns_2024wal_2024-09-30_09-55-03_FTN_FLOYDS-N_Global_SN_Project.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-N_GOTO-2

2024-09-28 23:58:45 - 2024-09-28 23:58:45

2460582.499134 - 2460582.499134

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
438768	2024-09-28 23:58:45	2460582.499134			18.3	ABMag	L-GOTO	GOTO-N_GOTO-2	180		[Last non detection]

w-P1

PS2_GPC2

2024-09-25 11:01:00 - 2024-09-25 11:01:00

2460578.95903 - 2460578.95903

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
449681	2024-09-25 11:01:00	2460578.95903	18.5	0.02	22	ABMag	w-P1	PS2_GPC2	45	Robot

L-GOTO

GOTO-N_GOTO-1

2024-09-30 23:49:08 - 2024-09-30 23:49:08

2460584.49245 - 2460584.49245

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
438769	2024-09-30 23:49:08	2460584.49245	18.14	0.06		ABMag	L-GOTO	GOTO-N_GOTO-1	180

i-ZTF

P48_ZTF-Cam

2024-09-23 09:24:12 - 2024-09-23 11:26:01

2460576.8918056 - 2460576.9764005

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
434673	2024-09-23 11:26:01	2460576.9764005	19.0852	0.14864		ABMag	i-ZTF	P48_ZTF-Cam
434672	2024-09-23 09:27:36	2460576.8941667	18.9925	0.14264		ABMag	i-ZTF	P48_ZTF-Cam
434671	2024-09-23 09:24:12	2460576.8918056			19.5281	ABMag	i-ZTF	P48_ZTF-Cam			[Last non detection]

orange-ATLAS

ATLAS-MLO_ATLAS-01

2024-09-23 14:33:04 - 2024-09-23 14:33:04

2460577.1063 - 2460577.1063

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
435813	2024-09-23 14:33:04	2460577.1063			18.58	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2024-09-25 11:30:05 - 2024-09-25 11:30:05

2460578.97922 - 2460578.97922

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
435814	2024-09-25 11:30:05	2460578.97922	18.438	0.116	19.17	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	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
234285	2024-11-30 15:41:22	PS1_Bot1	K. C. Chambers, T. de Boer, J. Herman et al.	Pan-STARRS	Pan-STARRS	02:42:59.468	+11:57:28.15	2024-09-25 11:01:00.192	18.5	w-P1		PSN		PS24lva	Pan-STARRS				N
228596	2024-10-09 15:29:09	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	02:42:59.470	+11:57:28.31	2024-09-30 23:49:07.680	18.14	L-GOTO		Other		GOTO24gqu	GOTO				N
226811	2024-09-26 08:06:11	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	02:42:59.468	+11:57:28.18	2024-09-25 11:30:04.608	18.438	orange-ATLAS		PSN		ATLAS24omb	ATLAS				N
226272	2024-09-23 12:11:19	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	02:42:59.462	+11:57:28.26	2024-09-23 09:27:36.002	18.9925	i-ZTF		PSN		ZTF24abisbqg	ZTF			2024TNSTR3667....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

18307

2024-09-30 20:47:19

Megan Newsome

Megan Newsome (LCO/UCSB), Moira Andrews (LCO/UCSB), Joseph Farah (LCO/UCSB), D. Andrew Howell (LCO/UCSB), Curtis McCully (LCO),

Global SN Project

SN Ia

0.053

1

2

Global SN Project

Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024) we find best fits to SNe Ia prior to maximum light, including SN 1990O 6 days before peak and SN 2006cq 3 days before peak. The supernova is closest to WISEA J024259.43+115730. Adopting the SNID best-fit redshift of z=0.053 we measure a Si II 6355 velocity of approximately 10,000 km/s. Adopting the distance modulus computed from this redshift (36.9), the g-band absolute magnitude of the object roughly coeval with the spectrum is -19.1 (apparent magnitude 17.9). This absolute magnitude and velocity is consistent with an SN Ia approaching maximum light.

2024TNSCR3794....1N

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2024wal_classrep_18307_Global_SN_Project.ps	SNID fit to SN 1990O, a Ia at z=0.058.	2024-09-30 20:47:19	Megan Newsome
tns_2024wal_classrep_18307_Global_SN_Project_0.ps	SNID fit to SN 2006cq, a Ia at z=0.052.	2024-09-30 20:47:19	Megan Newsome

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
18402	2024-09-30 09:55:03	FTN / FLOYDS-N	3600	Las Cumbres Observatory	Megan Newsome	Global SN Project	tns_2024wal_2024-09-30_09-55-03_FTN_FLOYDS-N_Global_SN_Project.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 234285 of Group Pan-STARRS
Previous RA, DEC: 02:42:59.462, +11:57:28.26 (40.7477604, +11.9578505)
Updated RA, DEC: 02:42:59.468, +11:57:28.15 (40.7477818027, 11.9578202105)

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