PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-16:12:50
G01     75.7           33.3                9.6 +/-    1.32      15.7 +/-    1.32  0.050 / 0.100
G07     134.9          34.9               12.0 +/-    0.88      19.1 +/-    0.88  0.050 / 0.100
G11     56.6           33.3                8.6 +/-    1.50      14.0 +/-    1.50  0.040 / 0.030
G13     279.7          37.9               10.3 +/-    1.75      15.5 +/-    1.75  0.030 / 0.030
G15     307.8          13.2                9.3 +/-    2.12      24.2 +/-    2.12  0.060 / 0.080
G17     226.7          64.5               12.0 +/-    1.14      13.1 +/-    1.14  0.060 / 0.080
G18     52.3           20.0                9.8 +/-    6.44      21.5 +/-    6.44  0.050 / 0.030
G19     221.3          35.6               11.7 +/-    2.21      18.3 +/-    2.21  0.040 / 0.040
G28     12.0           60.2               10.6 +/-    1.51      12.0 +/-    1.51  0.120 / 0.080
G30     130.4          66.3               11.3 +/-    0.60      12.2 +/-    0.60  0.060 / 0.080