PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-07:58:10
G08     264.1          15.6                8.0 +/-    1.43      19.6 +/-    1.43  0.040 / 0.060
G10     71.2           56.0                3.1 +/-    1.47       3.7 +/-    1.47  0.040 / 0.050
G11     308.1          19.8                4.8 +/-    2.71      10.5 +/-    2.71  0.180 / 0.420
G14     273.5          65.6                3.1 +/-    0.62       3.3 +/-    0.62  0.160 / 0.500
G18     309.3          35.7                3.5 +/-    1.35       5.5 +/-    1.35  0.120 / 0.480
G20     104.9          21.5                4.5 +/-    2.11       9.5 +/-    2.11  0.100 / 0.310
G21     155.6          10.4                3.6 +/-    1.91      10.1 +/-    1.91  0.030 / 0.040
G27     227.4          12.0                4.7 +/-    2.83      12.6 +/-    2.83  0.030 / 0.030
G31     175.3          38.3                5.8 +/-    1.11       8.6 +/-    1.11  0.140 / 0.350
G32     1.2            70.0                4.3 +/-    0.86       4.5 +/-    0.86  0.140 / 0.330