PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-03:43:10
G02     199.0          17.9                6.3 +/-    0.75      14.7 +/-    0.75  0.040 / 0.040
G06     175.3          46.5                6.4 +/-    1.29       8.5 +/-    1.29  0.040 / 0.040
G13     231.6          16.3                6.4 +/-    1.69      15.5 +/-    1.69  0.080 / 0.110
G17     13.7           64.5                3.4 +/-    0.82       3.7 +/-    0.82  0.090 / 0.120
G19     308.0          71.6                4.1 +/-    0.70       4.3 +/-    0.70  0.090 / 0.160
G24     313.4          25.3                5.1 +/-    1.64       9.9 +/-    1.64  0.110 / 0.160
G28     83.0           41.9                4.5 +/-    0.64       6.4 +/-    0.64  0.060 / 0.170
G30     155.2          15.4                5.6 +/-    1.39      13.8 +/-    1.39  0.080 / 0.210