PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/10-15:12:30
G07     356.8          65.0                8.3 +/-    0.55       9.1 +/-    0.55  0.070 / 0.070
G08     76.1           52.2               10.1 +/-    1.11      12.4 +/-    1.11  0.050 / 0.070
G09     180.8          57.7               13.1 +/-    0.97      15.2 +/-    0.97  0.040 / 0.050
G11     136.5          22.3               11.4 +/-    1.55      23.8 +/-    1.55  0.040 / 0.050
G23     158.0          24.3               12.6 +/-    1.11      25.0 +/-    1.11  0.030 / 0.050
G27     44.2           22.8                7.5 +/-    1.54      15.4 +/-    1.54  0.030 / 0.050
G28     250.3          40.2               13.3 +/-    1.42      19.3 +/-    1.42  0.050 / 0.210
G30     313.6          44.9                8.8 +/-    0.82      11.9 +/-    0.82  0.060 / 0.180