PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-23:12:30
G10     255.1          30.4               12.9 +/-    1.98      22.5 +/-    1.98  0.040 / 0.050
G13     49.2           26.7                9.2 +/-    2.86      17.2 +/-    2.86  0.040 / 0.040
G15     81.2           58.2               10.7 +/-    0.78      12.4 +/-    0.78  0.170 / 0.510
G16     289.0          15.5                9.1 +/-    2.96      22.5 +/-    2.96  0.130 / 0.470
G20     259.9          27.3               16.6 +/-    2.94      30.8 +/-    2.94  0.110 / 0.160
G21     338.8          63.0                9.4 +/-    0.55      10.4 +/-    0.55  0.110 / 0.160
G26     261.5          13.5               10.3 +/-    1.69      26.6 +/-    1.69  0.030 / 0.030
G29     166.5          45.4               11.6 +/-    0.82      15.5 +/-    0.82  0.020 / 0.030