PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-19:12:40
G03     212.4          60.1               14.3 +/-    1.18      16.3 +/-    1.18  0.060 / 0.060
G07     254.0          12.5               15.5 +/-    2.14      40.9 +/-    2.14  0.050 / 0.070
G09     308.1          24.0               12.3 +/-    1.09      24.6 +/-    1.09  0.190 / 0.380
G14     106.4          9.8                14.9 +/-    1.94      41.6 +/-    1.94  0.190 / 0.350
G16     107.3          64.1               15.3 +/-    0.99      16.9 +/-    0.99  0.070 / 0.120
G22     188.4          44.7               14.9 +/-    1.42      20.2 +/-    1.42  0.090 / 0.150
G23     328.4          57.9               13.9 +/-    0.69      16.1 +/-    0.69  0.030 / 0.060
G26     56.9           45.7               12.3 +/-    0.49      16.4 +/-    0.49  0.040 / 0.040
G31     57.4           12.4                9.7 +/-    1.38      25.6 +/-    1.38  0.030 / 0.040