2025xdt

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Information

Transient

Name: SN2025xdt
Right ascension: 16h27m13.06s
Declination: 33d28m19.76s
Discovery Date: Sept. 9, 2025, 3:47 a.m.
Classification: SN Ia
Redshift: 0.078000
MW E(B-V): 0.020

Host

Name:
Right ascension: 16h27m13.00s
Declination: 33d28m19.21s
Redshift: None
Photometric Redshift: 0.173

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	17.21
Transient MWEBV	processed	0.11
Host match	processed	6.88
Host information	processed	0.1
Host MWEBV	processed	0.05
Global aperture construction	processed	0.67
Global aperture photometry	processed	6.96
Validate global photometry	processed	17.51
Global host SED inference	processed	406.6
Local aperture photometry	processed	6.95
Validate local photometry	processed	0.02
Local host SED inference	processed	418.63

Cutout Download Report

2MASS_H: 2MASS_J: 2MASS_K: WISE_W1: WISE_W2: WISE_W3: WISE_W4: GALEX_NUV: GALEX_FUV: PanSTARRS_g: PanSTARRS_r: PanSTARRS_i: PanSTARRS_z: PanSTARRS_y: SDSS_i: SDSS_r: SDSS_u: SDSS_z: SDSS_g: DES_g: DES_r: DES_i: DES_z: DES_Y:

Aperture Photometry

Aperture details

RA, DEC (J2000) = 16h27m13.06s, 33d28m19.76s
semi major axis, semi minor axis (arcsec) = 1.36, 1.36
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_g	12.25	0.23	21.180	0.020	AB
PanSTARRS_g	17.39	0.31	20.799	0.019	AB
SDSS_r	25.37	1.47	20.389	0.063	AB
PanSTARRS_r	27.88	0.33	20.287	0.013	AB
DES_r	30.04	0.65	20.206	0.023	AB
SDSS_i	36.24	1.9	20.002	0.057	AB
PanSTARRS_i	37.22	0.36	19.973	0.011	AB
PanSTARRS_z	41.75	0.97	19.848	0.025	AB
SDSS_z	44.03	4.57	19.791	0.113	AB
DES_z	46.13	1.32	19.740	0.031	AB
PanSTARRS_y	39.49	2.18	19.909	0.060	AB

Aperture details

RA, DEC (J2000) = 16h27m13.00s, 33d28m19.43s
semi major axis, semi minor axis (arcsec) = 2.9, 2.87
angle (degrees, anti-clockwise from east) = -162.69

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	4.76	1.63	22.207	0.373	AB
GALEX_NUV	2.8	1.18	22.783	0.458	AB
SDSS_u	7.01	2.61	21.785	0.404	AB
SDSS_g	29.1	1.66	20.240	0.062	AB
DES_g	29.48	0.36	20.226	0.013	AB
PanSTARRS_g	33.99	0.64	20.072	0.020	AB
SDSS_r	52.57	2.38	19.598	0.049	AB
PanSTARRS_r	51.77	0.67	19.615	0.014	AB
DES_r	60.33	0.94	19.449	0.017	AB
SDSS_i	73.4	3.2	19.236	0.047	AB
PanSTARRS_i	71.63	0.73	19.262	0.011	AB
PanSTARRS_z	80.11	1.98	19.141	0.027	AB
SDSS_z	89.49	9.34	19.021	0.113	AB
DES_z	86.62	1.93	19.056	0.024	AB
PanSTARRS_y	71.35	4.45	19.267	0.068	AB
2MASS_J	53.15	69.19	18.691	1.413	Vega
2MASS_H	158.84	109.17	17.030	0.746	Vega
2MASS_K	-13.58	118.51			Vega
WISE_W1	51.55	6.08	16.920	0.128	Vega
WISE_W2	35.97	7.18	16.671	0.217	Vega
WISE_W3	119.38	42.35	13.534	0.385	Vega
WISE_W4	326.67	296.21	10.995	0.984	Vega

Imaging data

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Spectral Energy Distribution

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Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.087	9.188	9.295
{\rm log}_{10}({\rm SFR})	-1.994	-1.434	-0.916
{\rm log}_{10}({\rm sSFR})	-11.198	-10.622	-10.129
{\rm stellar\ age}	6.941	7.985	11.134

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.624	-1.229	-0.835
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.617	-0.924	-0.027

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.290	0.631	0.965
\delta	-0.262	0.060	0.275
\tau_1/\tau_2	0.701	1.053	1.402
Q_{PAH}	1.209	3.235	5.539
U_{min}	3.103	8.285	15.474
{\rm log}_{10}(\gamma_e)\,	-2.860	-1.711	-0.601

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.757	-0.715	-0.082
{\rm log}_{10}(\tau_{AGN})\,	1.109	1.536	2.031

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.970	-1.363	-0.887
0.03-0.10 Gyr	-2.284	-1.555	-0.906
0.10-0.33 Gyr	-2.545	-1.680	-1.070
0.33-1.07 Gyr	-2.632	-1.676	-1.106
1.07-3.50 Gyr	-2.615	-1.390	-0.819
3.50-11.45 Gyr	-1.234	-0.695	-0.536
11.45-12.73 Gyr	-1.011	-0.384	0.314

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.163	9.306	9.428
{\rm log}_{10}({\rm SFR})	-1.805	-1.258	-0.826
{\rm log}_{10}({\rm sSFR})	-11.171	-10.542	-10.068
{\rm stellar\ age}	5.484	7.177	8.709

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.526	-1.059	-0.627
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.772	-1.018	0.179

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.192	0.372	0.571
\delta	-0.698	-0.303	0.081
\tau_1/\tau_2	0.696	1.081	1.442
Q_{PAH}	1.677	3.439	5.383
U_{min}	3.208	8.561	15.275
{\rm log}_{10}(\gamma_e)\,	-2.533	-1.508	-0.593

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.656	-1.884	-0.802
{\rm log}_{10}(\tau_{AGN})\,	1.124	1.642	1.973

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.569	-1.134	-0.842
0.03-0.10 Gyr	-2.324	-1.366	-0.797
0.10-0.33 Gyr	-2.065	-1.204	-0.692
0.33-1.07 Gyr	-1.977	-1.020	-0.541
1.07-3.50 Gyr	-1.363	-0.764	-0.448
3.50-11.45 Gyr	-0.980	-0.590	-0.396
11.45-12.73 Gyr	-1.156	-0.501	0.091