PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-13:43:00
G01     75.0           33.2                6.2 +/-    0.74      10.1 +/-    0.74  0.040 / 0.030
G07     135.3          34.1                9.2 +/-    0.62      14.9 +/-    0.62  0.040 / 0.030
G11     55.6           32.2                6.5 +/-    1.53      10.9 +/-    1.53  0.060 / 0.090
G13     278.7          38.0                7.8 +/-    3.40      11.8 +/-    3.40  0.060 / 0.090
G15     308.4          12.6                5.6 +/-    2.16      14.7 +/-    2.16  0.050 / 0.100
G17     227.7          67.0               10.1 +/-    0.87      10.9 +/-    0.87  0.080 / 0.110
G18     51.5           19.5                6.0 +/-    4.24      13.3 +/-    4.24  0.050 / 0.080
G19     221.6          35.4                9.3 +/-    2.26      14.7 +/-    2.26  0.060 / 0.090
G28     12.8           60.1                8.7 +/-    1.52       9.9 +/-    1.52  0.150 / 0.230
G30     131.1          66.8                9.9 +/-    0.58      10.7 +/-    0.58  0.120 / 0.140