PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-05:28:10
G07     331.6          57.7                5.7 +/-    0.59       6.7 +/-    0.59  0.060 / 0.060
G08     98.6           50.7                9.5 +/-    0.44      11.9 +/-    0.44  0.070 / 0.090
G09     179.6          71.7                9.0 +/-    0.51       9.4 +/-    0.51  0.170 / 0.110
G11     145.8          12.6                9.1 +/-    3.56      23.9 +/-    3.56  0.090 / 0.090
G23     155.6          45.8                9.0 +/-    1.06      11.9 +/-    1.06  0.030 / 0.050
G27     58.7           33.9                6.7 +/-    1.70      10.8 +/-    1.70  0.040 / 0.040
G28     235.2          26.5                6.0 +/-    2.05      11.3 +/-    2.05  0.060 / 0.070
G30     299.3          32.2                5.7 +/-    2.14       9.5 +/-    2.14  0.040 / 0.060