PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-07:43:10
G02     239.8          77.0                6.9 +/-    0.39       7.0 +/-    0.39  0.160 / 0.250
G05     171.9          15.4                3.8 +/-    3.50       9.4 +/-    3.50  0.120 / 0.230
G06     40.4           64.2                4.2 +/-    0.58       4.6 +/-    0.58  0.040 / 0.100
G12     321.2          49.0                4.8 +/-    1.37       6.1 +/-    1.37  0.050 / 0.110
G17     70.2           23.1                4.1 +/-    0.64       8.3 +/-    0.64  0.080 / 0.070
G19     56.8           38.7                4.4 +/-    0.50       6.5 +/-    0.50  0.080 / 0.110
G24     247.9          35.6                8.9 +/-    1.12      14.0 +/-    1.12  0.030 / 0.050
G25     316.5          11.0              -12.0 +/-   29.68     -32.8 +/-   29.68  0.030 / 0.050