PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-23:27:40
G02     68.9           25.6                8.9 +/-    1.79      17.2 +/-    1.79  0.040 / 0.050
G05     47.4           49.5                8.0 +/-    0.39      10.2 +/-    0.39  0.030 / 0.050
G12     180.7          18.5               12.5 +/-    1.78      28.4 +/-    1.78  0.110 / 0.300
G13     117.9          23.2               12.9 +/-    1.43      26.3 +/-    1.43  0.120 / 0.270
G15     158.6          21.2               14.1 +/-    1.94      30.1 +/-    1.94  0.050 / 0.090
G21     280.9          23.9               11.0 +/-    0.73      22.1 +/-    0.73  0.050 / 0.080
G25     222.2          42.2               10.1 +/-    1.62      14.2 +/-    1.62  0.090 / 0.200
G26     318.8          11.2               -3.4 +/-   35.96      -9.1 +/-   35.96  0.100 / 0.160
G29     335.3          65.5                9.4 +/-    1.15      10.2 +/-    1.15  0.060 / 0.150