PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-17:58:00
G07     36.7           69.8               12.3 +/-    1.31      13.1 +/-    1.31  0.040 / 0.060
G08     56.4           45.6               11.6 +/-    0.38      15.5 +/-    0.38  0.050 / 0.070
G09     179.0          41.4               15.6 +/-    1.70      22.2 +/-    1.70  0.080 / 0.150
G11     124.4          32.2               13.8 +/-    0.76      23.1 +/-    0.76  0.080 / 0.150
G18     108.5          14.2               14.5 +/-    1.92      36.7 +/-    1.92  0.050 / 0.070
G27     37.9           10.6               11.4 +/-    3.15      31.4 +/-    3.15  0.070 / 0.080
G28     269.6          50.5               12.3 +/-    0.72      15.4 +/-    0.72  0.210 / 0.390
G30     329.2          57.6               11.8 +/-    0.92      13.7 +/-    0.92  0.170 / 0.330