PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-22:27:40
G10     247.2          23.9               11.9 +/-    0.61      23.8 +/-    0.61  0.050 / 0.040
G13     57.3           31.8                8.8 +/-    1.58      14.9 +/-    1.58  0.050 / 0.050
G15     101.4          59.1               10.0 +/-    0.43      11.4 +/-    0.43  0.030 / 0.040
G16     298.1          16.2                7.1 +/-    1.65      17.1 +/-    1.65  0.030 / 0.030
G20     251.5          18.0                5.5 +/-    3.05      12.7 +/-    3.05  0.060 / 0.140
G21     327.6          56.5                8.9 +/-    0.61      10.5 +/-    0.61  0.080 / 0.110
G26     270.1          17.3               11.0 +/-    1.68      25.8 +/-    1.68  0.030 / 0.040
G29     164.1          55.9               10.2 +/-    0.52      12.1 +/-    0.52  0.050 / 0.040