PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-22:42:40
G10     275.6          43.0               10.3 +/-    0.83      14.3 +/-    0.83  0.090 / 0.170
G13     38.9           12.1                8.7 +/-    1.40      23.1 +/-    1.40  0.070 / 0.130
G15     54.5           46.4                8.6 +/-    0.80      11.4 +/-    0.80  0.050 / 0.040
G20     272.9          30.8                6.7 +/-    0.88      11.5 +/-    0.88  0.050 / 0.040
G21     21.2           75.7               10.2 +/-    0.43      10.5 +/-    0.43  0.110 / 0.290
G24     112.0          18.6               13.4 +/-    1.42      30.5 +/-    1.42  0.120 / 0.270
G27     314.8          24.2                9.2 +/-    1.39      18.3 +/-    1.39  0.130 / 0.350
G29     168.9          24.6               13.6 +/-    1.58      26.9 +/-    1.58  0.160 / 0.380
G32     205.1          17.7               17.1 +/-    3.60      39.7 +/-    3.60  0.030 / 0.060