PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-09:43:10
G01     226.8          18.6                5.1 +/-    1.74      11.7 +/-    1.74  0.130 / 0.260
G03     289.2          68.7                3.5 +/-    0.34       3.7 +/-    0.34  0.110 / 0.320
G14     84.3           25.5                4.6 +/-    1.44       8.8 +/-    1.44  0.030 / 0.040
G16     149.5          41.7                7.6 +/-    0.69      10.8 +/-    0.69  0.030 / 0.040
G22     217.7          71.6                5.8 +/-    0.77       6.1 +/-    0.77  0.030 / 0.040
G23     307.1          38.1                3.3 +/-    1.20       4.9 +/-    1.20  0.030 / 0.040
G26     103.2          53.8                6.5 +/-    0.37       7.8 +/-    0.37  0.110 / 0.190
G31     44.9           33.2                1.5 +/-    0.47       2.5 +/-    0.47  0.090 / 0.210