PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-07:13:10
G01     117.8          18.8                8.2 +/-    1.56      18.5 +/-    1.56  0.040 / 0.040
G07     86.4           64.7                9.4 +/-    0.88      10.2 +/-    0.88  0.030 / 0.040
G08     43.7           27.9                3.2 +/-    0.60       5.8 +/-    0.60  0.040 / 0.040
G09     173.6          20.4                6.4 +/-    1.31      14.1 +/-    1.31  0.040 / 0.040
G11     102.7          40.6               10.4 +/-    0.82      15.0 +/-    0.82  0.100 / 0.190
G13     316.8          21.0                3.6 +/-    4.15       7.7 +/-    4.15  0.120 / 0.220
G17     201.1          28.2                5.5 +/-    1.08      10.0 +/-    1.08  0.170 / 0.380
G18     90.5           21.2                8.4 +/-    0.95      18.1 +/-    0.95  0.160 / 0.320
G28     293.3          57.2                6.7 +/-    1.09       7.8 +/-    1.09  0.170 / 0.410
G30     345.4          68.7                4.0 +/-    1.60       4.2 +/-    1.60  0.090 / 0.350