PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-21:42:50
G01     106.9          25.7               11.8 +/-    2.31      22.7 +/-    2.31  0.080 / 0.160
G07     106.8          58.6               13.7 +/-    1.10      15.8 +/-    1.10  0.110 / 0.180
G08     42.5           24.2                9.9 +/-    1.89      19.6 +/-    1.89  0.170 / 0.170
G09     175.5          14.2               14.7 +/-    1.57      37.2 +/-    1.57  0.120 / 0.210
G11     91.8           43.4               11.3 +/-    0.88      15.5 +/-    0.88  0.050 / 0.040
G13     309.8          28.3                9.7 +/-    1.04      17.7 +/-    1.04  0.030 / 0.050
G17     207.0          34.5               14.3 +/-    0.84      22.9 +/-    0.84  0.030 / 0.040
G18     80.8           24.4               12.3 +/-    1.20      24.4 +/-    1.20  0.030 / 0.030
G28     319.3          61.1               10.2 +/-    0.65      11.5 +/-    0.65  0.060 / 0.050
G30     38.2           78.3               13.3 +/-    0.35      13.5 +/-    0.35  0.040 / 0.050