PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/10-18:27:50
G02     84.6           12.6               12.6 +/-    2.81      33.1 +/-    2.81  0.120 / 0.280
G05     44.7           34.8                9.4 +/-    0.73      14.9 +/-    0.73  0.120 / 0.330
G13     99.8           34.0               12.2 +/-    1.22      19.6 +/-    1.22  0.140 / 0.330
G15     143.5          38.8               13.1 +/-    1.05      19.4 +/-    1.05  0.110 / 0.390
G18     231.9          28.6               12.1 +/-    1.81      21.8 +/-    1.81  0.050 / 0.070
G20     349.7          83.3                9.9 +/-    0.47       9.9 +/-    0.47  0.030 / 0.060
G21     298.6          38.1               11.0 +/-    1.05      16.5 +/-    1.05  0.070 / 0.100
G25     206.6          23.8               11.1 +/-    1.42      22.3 +/-    1.42  0.060 / 0.100
G26     308.7          16.1                9.0 +/-    4.88      21.8 +/-    4.88  0.150 / 0.210
G29     103.4          84.4               11.3 +/-    1.53      11.3 +/-    1.53  0.160 / 0.250