2026ssh results

2026ssh results

Information

Transient

Name:	`AT2026ssh`
Right ascension:	`0h23m13.02s`
Declination:	`-4d43m14.99s`
Discovery Date:	`June 23, 2026, 1:59 p.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.026`

Host

Name:	`J002312.90-044318.92`
Object ID:	`9906619626882515`
Catalog Name:	`decals`
Catalog Release:	`dr9`
Right ascension:	`0h23m12.90s`
Declination:	`-4d43m18.92s`
Redshift:	`None`
Photometric Redshift:	`0.034`

Cutout Download Report

Downloaded	Unavailable
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_r	DES_g DES_i DES_z DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	16.65
Transient MWEBV	processed	0.04
Host match	processed	6.88
Host information	processed	0.12
Host MWEBV	processed	0.04
Global aperture construction	processed	0.64
Global aperture photometry	processed	5.49
Validate global photometry	processed	16.94
Global host SED inference	processed	597.53
Local aperture photometry	processed	5.39
Validate local photometry	processed	0.02
Local host SED inference	processed	678.57

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	0h23m13.02s, -4d43m14.99s
semi major axis, semi minor axis (arcsec):	2.93, 2.93
angle (degrees, anti-clockwise from east):	0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	8.32	3.28	21.599	0.428	AB
SDSS_g	29.19	1.65	20.237	0.061	AB
PanSTARRS_g	33.6	0.71	20.084	0.023	AB
SDSS_r	40.25	2.25	19.888	0.061	AB
PanSTARRS_r	41.93	0.57	19.844	0.015	AB
DES_r	45.26	0.31	19.761	0.008	AB
SDSS_i	49.71	3.11	19.659	0.068	AB
PanSTARRS_i	48.12	0.81	19.694	0.018	AB
PanSTARRS_z	57.41	1.96	19.503	0.037	AB
SDSS_z	27.03	11.21	20.320	0.450	AB
PanSTARRS_y	45.07	4.36	19.765	0.105	AB
2MASS_J	71.85	82.21	18.364	1.242	Vega
2MASS_H	134.55	115.64	17.210	0.933	Vega
2MASS_K	-68.79	133.96			Vega

Aperture details

RA, DEC (J2000):	0h23m12.91s, -4d43m18.57s
semi major axis, semi minor axis (arcsec):	10.03, 6.58
angle (degrees, anti-clockwise from east):	-107.7

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	36.57	4.37	19.992	0.130	AB
GALEX_NUV	50.3	3.17	19.646	0.068	AB
SDSS_u	59.61	9.14	19.462	0.167	AB
SDSS_g	178.04	4.26	18.274	0.026	AB
PanSTARRS_g	181.84	1.95	18.251	0.012	AB
SDSS_r	247.47	5.96	17.916	0.026	AB
PanSTARRS_r	232.19	1.56	17.985	0.007	AB
DES_r	270.69	0.81	17.819	0.003	AB
SDSS_i	315.88	8.4	17.651	0.029	AB
PanSTARRS_z	321.19	5.4	17.633	0.018	AB
SDSS_z	252.45	31.15	17.895	0.134	AB
PanSTARRS_y	324.84	12.02	17.621	0.040	AB
2MASS_J	447.22	240.27	16.379	0.583	Vega
2MASS_H	828.0	336.55	15.237	0.441	Vega
2MASS_K	232.44	391.68	16.146	1.829	Vega
WISE_W1	188.45	21.23	15.513	0.122	Vega
WISE_W2	169.51	23.34	14.988	0.149	Vega
WISE_W3	25.99	95.96	15.189	4.008	Vega
WISE_W4	127.4	501.95	12.017	4.278	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	7.893	8.072	8.230
{\rm log}_{10}({\rm SFR})	-2.904	-1.805	-0.961
{\rm log}_{10}({\rm sSFR})	-10.936	-9.925	-8.956
{\rm stellar\ age}	0.915	4.214	6.403

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.456	-0.802	-0.375
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.880	-1.562	-0.714

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.090	0.283	0.624
\delta	-0.712	-0.220	0.205
\tau_1/\tau_2	0.621	1.017	1.437
Q_{PAH}	1.372	3.521	5.722
U_{min}	3.574	9.586	17.179
{\rm log}_{10}(\gamma_e)\,	-2.809	-1.457	-0.516

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.979	-0.489	-0.059
{\rm log}_{10}(\tau_{AGN})\,	1.085	1.662	2.049

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.523	-2.291	-1.762
0.03-0.10 Gyr	-3.307	-1.738	-0.814
0.10-0.33 Gyr	-2.188	-1.282	-0.756
0.33-1.09 Gyr	-2.637	-1.468	-1.095
1.09-3.62 Gyr	-3.665	-1.894	-1.518
3.62-11.97 Gyr	-4.525	-2.214	-1.753
11.97-13.30 Gyr	-4.706	-2.297	-1.623

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.061	9.175	9.271
{\rm log}_{10}({\rm SFR})	-0.714	-0.473	-0.251
{\rm log}_{10}({\rm sSFR})	-9.905	-9.648	-9.383
{\rm stellar\ age}	6.541	7.723	9.861

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.836	-1.494	-0.948
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.924	-1.745	-1.079

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.191	0.366	0.566
\delta	0.057	0.259	0.357
\tau_1/\tau_2	0.558	0.895	1.297
Q_{PAH}	0.838	2.385	4.559
U_{min}	2.849	8.071	15.412
{\rm log}_{10}(\gamma_e)\,	-3.112	-2.056	-1.104

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.120	-1.820	-1.307
{\rm log}_{10}(\tau_{AGN})\,	1.074	1.425	1.835

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.523	-1.085	-0.852
0.03-0.10 Gyr	-0.620	-0.347	-0.110
0.10-0.33 Gyr	-1.461	-0.823	-0.474
0.33-1.09 Gyr	-1.668	-1.107	-0.788
1.09-3.62 Gyr	-1.751	-1.111	-0.796
3.62-11.97 Gyr	-1.148	-0.771	-0.605
11.97-13.30 Gyr	-1.077	-0.514	0.119