PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/10-14:12:30
G07     314.6          50.1                8.6 +/-    0.80      10.8 +/-    0.80  0.100 / 0.200
G08     121.4          45.6               12.0 +/-    1.27      16.0 +/-    1.27  0.090 / 0.150
G09     254.3          83.4                8.6 +/-    0.62       8.6 +/-    0.62  0.040 / 0.050
G16     43.3           16.3                6.5 +/-    1.17      15.7 +/-    1.17  0.040 / 0.060
G23     148.4          52.9               10.8 +/-    0.88      13.1 +/-    0.88  0.040 / 0.060
G27     70.0           36.6                8.1 +/-    0.86      12.6 +/-    0.86  0.040 / 0.050
G28     228.0          18.6                9.0 +/-    2.81      20.4 +/-    2.81  0.040 / 0.070
G30     291.4          26.5                8.9 +/-    1.66      16.9 +/-    1.66  0.040 / 0.060