PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-03:28:10
G05     49.1           15.7                5.6 +/-    2.42      13.6 +/-    2.42  0.200 / 0.320
G10     236.2          12.3                2.3 +/-   36.68       6.0 +/-   36.68  0.120 / 0.290
G13     75.9           36.5                8.9 +/-    0.71      13.8 +/-    0.71  0.050 / 0.080
G15     124.7          52.3               11.6 +/-    0.47      14.2 +/-    0.47  0.050 / 0.100
G16     313.4          12.9                8.1 +/-    2.58      21.2 +/-    2.58  0.130 / 0.230
G20     253.9          51.2               13.3 +/-    4.13      16.6 +/-    4.13  0.280 / 0.250
G21     312.7          46.6               10.6 +/-    1.05      14.0 +/-    1.05  0.080 / 0.080
G25     199.9          11.1                8.0 +/-    3.53      21.7 +/-    3.53  0.080 / 0.070
G26     286.0          20.8               11.0 +/-    1.16      23.7 +/-    1.16  0.140 / 0.480
G29     156.3          73.2               10.4 +/-    0.98      10.8 +/-    0.98  0.160 / 0.330