2025snt

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Information

Transient

Name: AT2025snt
Right ascension: 1h21m23.55s
Declination: 3d12m48.25s
Discovery Date: July 20, 2025, 9:36 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.024

Host

Name:
Right ascension: 1h21m23.62s
Declination: 3d12m48.46s
Redshift: None
Photometric Redshift: 0.089

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	31.18
Transient MWEBV	processed	0.04
Host match	processed	7.22
Host information	processed	0.15
Host MWEBV	processed	0.05
Global aperture construction	processed	0.63
Global aperture photometry	processed	6.27
Validate global photometry	processed	16.05
Global host SED inference	processed	453.21
Local aperture photometry	processed	7.0
Validate local photometry	processed	0.02
Local host SED inference	processed	465.13

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) = 1h21m23.55s, 3d12m48.25s
semi major axis, semi minor axis (arcsec) = 1.21, 1.21
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	30.39	0.18	20.193	0.007	AB
PanSTARRS_r	46.75	0.42	19.725	0.010	AB
DES_r	47.88	0.27	19.700	0.006	AB
PanSTARRS_i	58.57	0.36	19.481	0.007	AB
PanSTARRS_z	72.55	0.92	19.248	0.014	AB
DES_z	69.82	0.88	19.290	0.014	AB
PanSTARRS_y	77.81	2.22	19.172	0.031	AB

Aperture details

RA, DEC (J2000) = 1h21m23.60s, 3d12m48.70s
semi major axis, semi minor axis (arcsec) = 7.39, 3.11
angle (degrees, anti-clockwise from east) = -32.41

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	76.22	4.56	19.195	0.065	AB
SDSS_g	160.51	3.55	18.386	0.024	AB
DES_g	142.08	0.44	18.519	0.003	AB
PanSTARRS_g	164.33	1.29	18.361	0.008	AB
SDSS_r	219.62	4.42	18.046	0.022	AB
PanSTARRS_r	212.38	1.6	18.082	0.008	AB
DES_r	216.97	0.62	18.059	0.003	AB
SDSS_i	306.81	5.99	17.683	0.021	AB
PanSTARRS_i	274.32	1.34	17.804	0.005	AB
PanSTARRS_z	314.25	3.52	17.657	0.012	AB
SDSS_z	356.11	13.9	17.521	0.042	AB
DES_z	301.47	2.0	17.702	0.007	AB
PanSTARRS_y	336.16	8.59	17.584	0.028	AB
2MASS_J	361.51	131.41	16.610	0.395	Vega
2MASS_H	303.65	215.61	16.326	0.771	Vega
2MASS_K	727.79	229.76	14.907	0.343	Vega
WISE_W1	183.46	11.4	15.542	0.067	Vega
WISE_W2	126.72	15.22	15.304	0.130	Vega
WISE_W3	509.2	55.63	11.959	0.119	Vega
WISE_W4	636.68	376.26	10.270	0.642	Vega

Imaging data

Click the image to load the interactive plot.

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})\,	8.763	9.132	9.269
{\rm log}_{10}({\rm SFR})	-2.623	-0.991	0.265
{\rm log}_{10}({\rm sSFR})	-11.795	-10.152	-8.617
{\rm stellar\ age}	0.468	4.320	6.691

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.446	-0.783	-0.289
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.529	-0.813	-0.022

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.223	0.622	1.023
\delta	-0.617	-0.257	0.153
\tau_1/\tau_2	0.576	1.014	1.442
Q_{PAH}	0.765	2.240	4.609
U_{min}	3.779	9.927	17.766
{\rm log}_{10}(\gamma_e)\,	-2.925	-1.810	-0.601

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.697	-0.654	-0.156
{\rm log}_{10}(\tau_{AGN})\,	1.053	1.424	1.957

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.980	-2.126	-1.332
0.03-0.10 Gyr	-2.758	-0.881	0.427
0.10-0.33 Gyr	-1.660	-0.471	0.349
0.33-1.06 Gyr	-2.951	-0.698	-0.092
1.06-3.47 Gyr	-3.891	-0.953	-0.451
3.47-11.33 Gyr	-4.857	-1.265	-0.664
11.33-12.59 Gyr	-5.264	-1.253	-0.425

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.621	9.807	9.935
{\rm log}_{10}({\rm SFR})	-0.133	0.415	0.862
{\rm log}_{10}({\rm sSFR})	-9.975	-9.433	-8.797
{\rm stellar\ age}	4.686	6.443	7.898

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.197	-0.786	-0.489
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.592	0.054	0.384

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.133	0.254	0.425
\delta	-0.832	-0.518	-0.037
\tau_1/\tau_2	0.556	1.002	1.467
Q_{PAH}	0.550	1.596	3.693
U_{min}	2.404	7.138	14.043
{\rm log}_{10}(\gamma_e)\,	-3.227	-2.318	-1.229

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.017	-2.818	-1.935
{\rm log}_{10}(\tau_{AGN})\,	0.997	1.421	1.873

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.603	-0.384	-0.180
0.03-0.10 Gyr	-0.044	0.555	1.016
0.10-0.33 Gyr	-1.186	-0.063	0.326
0.33-1.06 Gyr	-1.666	-0.365	0.033
1.06-3.47 Gyr	-1.031	-0.237	0.050
3.47-11.33 Gyr	-0.673	-0.150	0.072
11.33-12.59 Gyr	-0.745	-0.078	0.500