2026tb

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Information

Transient

Name: SN2026tb
Right ascension: 15h56m26.18s
Declination: 34d37m22.96s
Discovery Date: Jan. 12, 2026, 11:46 a.m.
Classification: SN Ia
Redshift: 0.031024
MW E(B-V): 0.022

Host

Name: SDSSJ155625.81+34372
Right ascension: 15h56m25.92s
Declination: 34d37m21.86s
Redshift: None
Photometric Redshift: 0.032

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	0.74
Transient MWEBV	processed	0.03
Host match	processed	4.95
Host information	processed	0.14
Host MWEBV	processed	0.08
Global aperture construction	processed	0.12
Global aperture photometry	processed	1.31
Validate global photometry	processed	2.29
Global host SED inference	processed	432.71
Local aperture photometry	processed	1.19
Validate local photometry	processed	0.02
Local host SED inference	processed	423.71

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) = 15h56m26.18s, 34d37m22.96s
semi major axis, semi minor axis (arcsec) = 3.22, 3.22
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	20.51	2.55	20.620	0.135	AB
SDSS_g	57.66	2.22	19.498	0.042	AB
DES_g	55.32	0.73	19.543	0.014	AB
PanSTARRS_g	54.19	1.14	19.565	0.023	AB
SDSS_r	79.04	2.75	19.155	0.038	AB
PanSTARRS_r	74.23	1.23	19.224	0.018	AB
SDSS_i	92.42	3.19	18.986	0.038	AB
PanSTARRS_i	89.36	1.21	19.022	0.015	AB
PanSTARRS_z	86.65	2.06	19.056	0.026	AB
SDSS_z	95.65	8.21	18.948	0.093	AB
DES_z	99.43	1.72	18.906	0.019	AB
PanSTARRS_y	108.03	5.36	18.816	0.054	AB
2MASS_J	155.85	64.98	17.523	0.453	Vega
2MASS_H	81.71	105.36	17.752	1.400	Vega
2MASS_K	112.77	116.4	16.932	1.121	Vega

Aperture details

RA, DEC (J2000) = 15h56m25.79s, 34d37m21.92s
semi major axis, semi minor axis (arcsec) = 9.41, 4.14
angle (degrees, anti-clockwise from east) = -112.57

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	23.22	3.89	20.486	0.182	AB
GALEX_NUV	44.1	3.22	19.789	0.079	AB
SDSS_u	85.54	4.98	19.070	0.063	AB
SDSS_g	219.81	4.45	18.045	0.022	AB
DES_g	208.5	1.48	18.102	0.008	AB
PanSTARRS_g	222.72	2.25	18.031	0.011	AB
SDSS_r	313.32	5.58	17.660	0.019	AB
PanSTARRS_r	309.02	2.29	17.675	0.008	AB
SDSS_i	372.73	6.37	17.472	0.019	AB
PanSTARRS_i	376.62	2.39	17.460	0.007	AB
PanSTARRS_z	381.71	4.29	17.446	0.012	AB
SDSS_z	421.82	16.15	17.337	0.042	AB
DES_z	413.31	3.45	17.359	0.009	AB
PanSTARRS_y	430.78	10.36	17.314	0.026	AB
2MASS_J	509.11	138.95	16.238	0.296	Vega
2MASS_H	684.16	223.81	15.444	0.355	Vega
2MASS_K	798.23	249.1	14.807	0.339	Vega
WISE_W1	208.92	26.96	15.401	0.140	Vega
WISE_W2	129.5	14.13	15.280	0.118	Vega
WISE_W3	141.23	37.95	13.351	0.292	Vega
WISE_W4	-24.69	179.86			Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Click the image to load the interactive plot.

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.086	8.332	8.505
{\rm log}_{10}({\rm SFR})	-2.153	-1.352	-0.458
{\rm log}_{10}({\rm sSFR})	-10.491	-9.734	-8.685
{\rm stellar\ age}	0.742	4.672	7.159

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.809	-1.488	-1.012
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.458	-0.560	0.212

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.211	0.610	0.992
\delta	-0.524	-0.200	0.128
\tau_1/\tau_2	0.663	1.021	1.380
Q_{PAH}	0.703	1.890	4.313
U_{min}	3.017	8.309	15.491
{\rm log}_{10}(\gamma_e)\,	-3.194	-1.867	-0.795

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.360	-1.338	-0.294
{\rm log}_{10}(\tau_{AGN})\,	1.008	1.421	1.929

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.302	-1.703	-1.297
0.03-0.10 Gyr	-2.323	-1.289	-0.306
0.10-0.33 Gyr	-2.169	-1.152	-0.517
0.33-1.10 Gyr	-2.130	-1.399	-1.026
1.10-3.63 Gyr	-2.229	-1.503	-1.214
3.63-12.00 Gyr	-2.583	-1.582	-1.293
12.00-13.33 Gyr	-2.665	-1.615	-1.036
0.33-1.10 Gyr	-3.188	-1.509	-1.035
1.10-3.63 Gyr	-3.643	-1.668	-1.278
3.63-12.01 Gyr	-4.228	-1.898	-1.428
12.01-13.34 Gyr	-4.110	-1.913	-1.227

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.940	9.053	9.164
{\rm log}_{10}({\rm SFR})	-1.217	-0.761	-0.448
{\rm log}_{10}({\rm sSFR})	-10.282	-9.817	-9.445
{\rm stellar\ age}	5.767	7.002	8.544

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.494	-1.156	-0.861
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.207	0.152	0.421

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.123	0.226	0.373
\delta	-0.549	-0.147	0.161
\tau_1/\tau_2	0.631	0.950	1.306
Q_{PAH}	0.614	1.679	3.474
U_{min}	3.170	8.537	15.782
{\rm log}_{10}(\gamma_e)\,	-3.210	-2.302	-1.147

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.959	-2.726	-1.903
{\rm log}_{10}(\tau_{AGN})\,	0.966	1.362	1.846

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.523	-1.917	-1.398
0.03-0.10 Gyr	-1.112	-0.612	-0.292
0.10-0.33 Gyr	-1.155	-0.677	-0.391
0.33-1.10 Gyr	-2.952	-1.232	-0.836
1.10-3.63 Gyr	-2.215	-1.041	-0.716
3.63-12.00 Gyr	-1.410	-0.829	-0.631
12.00-13.33 Gyr	-1.537	-0.725	0.056
0.33-1.10 Gyr	-1.604	-1.023	-0.744
1.10-3.63 Gyr	-1.531	-0.997	-0.728
3.63-12.01 Gyr	-1.244	-0.895	-0.715
12.01-13.34 Gyr	-1.468	-0.822	-0.230