PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-20:27:40
G03     191.4          26.2               15.0 +/-    1.86      28.5 +/-    1.86  0.220 / 0.370
G07     282.7          32.7               12.0 +/-    1.69      19.9 +/-    1.69  0.300 / 0.410
G08     148.9          20.8               19.2 +/-    1.68      41.4 +/-    1.68  0.070 / 0.080
G09     320.2          54.0               13.2 +/-    0.67      15.9 +/-    0.67  0.060 / 0.080
G16     45.9           46.6               11.2 +/-    0.71      14.8 +/-    0.71  0.140 / 0.180
G22     178.4          12.0               17.1 +/-    2.31      45.6 +/-    2.31  0.120 / 0.190
G23     73.4           82.4               11.7 +/-    0.75      11.8 +/-    0.75  0.030 / 0.060
G26     42.9           17.4               10.2 +/-    4.32      24.0 +/-    4.32  0.050 / 0.070
G27     107.1          30.2               15.3 +/-    1.09      26.6 +/-    1.09  0.030 / 0.020
G30     269.3          11.4               -0.3 +/-   40.02      -0.7 +/-   40.02  0.020 / 0.030