PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-14:12:50
G01     74.2           33.2                7.9 +/-    0.85      13.1 +/-    0.85  0.030 / 0.030
G07     135.7          33.6               10.4 +/-    0.95      16.9 +/-    0.95  0.040 / 0.030
G11     55.2           31.9                6.1 +/-    0.83      10.3 +/-    0.83  0.060 / 0.090
G13     277.9          37.9                8.2 +/-    1.19      12.4 +/-    1.19  0.250 / 0.290
G15     307.6          13.0                4.6 +/-    1.20      12.0 +/-    1.20  0.070 / 0.130
G17     228.7          67.2                9.4 +/-    0.94      10.1 +/-    0.94  0.070 / 0.120
G18     51.0           19.3                6.2 +/-    1.40      13.8 +/-    1.40  0.040 / 0.060
G19     222.0          36.1               10.6 +/-    1.67      16.4 +/-    1.67  0.050 / 0.050
G28     14.0           60.0                6.8 +/-    0.62       7.7 +/-    0.62  0.040 / 0.090
G30     132.0          66.0                7.9 +/-    0.81       8.6 +/-    0.81  0.040 / 0.080