PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-10:57:50
G02     239.8          75.5                4.6 +/-    0.53       4.8 +/-    0.53  0.100 / 0.260
G05     175.2          12.2                4.1 +/-    1.68      10.8 +/-    1.68  0.130 / 0.250
G06     40.8           58.7                4.6 +/-    1.03       5.3 +/-    1.03  0.050 / 0.110
G12     322.0          53.4                4.4 +/-    0.98       5.3 +/-    0.98  0.080 / 0.100
G17     69.1           23.3                3.7 +/-    0.85       7.5 +/-    0.85  0.040 / 0.040
G19     56.8           37.5                4.1 +/-    0.37       6.2 +/-    0.37  0.030 / 0.040
G24     248.4          35.3                5.1 +/-    1.44       8.0 +/-    1.44  0.150 / 0.490
G25     315.9          10.5              -15.3 +/-   22.94     -42.3 +/-   22.94  0.180 / 0.490