PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/20-14:42:30
G01     87.3           32.4                9.5 +/-    0.66      15.8 +/-    0.66  0.030 / 0.030
G07     127.7          43.4               12.0 +/-    0.82      16.6 +/-    0.82  0.030 / 0.030
G11     65.3           38.3                7.7 +/-    0.65      11.6 +/-    0.65  0.070 / 0.100
G13     291.6          36.8               10.3 +/-    1.76      15.8 +/-    1.76  0.060 / 0.110
G17     216.4          56.1               12.5 +/-    1.11      14.8 +/-    1.11  0.050 / 0.080
G18     61.0           23.2                7.8 +/-    0.70      15.9 +/-    0.70  0.040 / 0.060
G19     216.0          26.5                9.8 +/-    1.43      18.6 +/-    1.43  0.060 / 0.060
G28     353.6          61.6                9.0 +/-    1.15      10.1 +/-    1.15  0.060 / 0.060
G30     110.3          75.2               10.3 +/-    0.69      10.6 +/-    0.69  0.040 / 0.090