PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/21-01:57:50
G01     283.7          41.4                3.8 +/-    0.90       5.3 +/-    0.90  0.050 / 0.080
G03     313.5          20.3                5.9 +/-    2.04      12.8 +/-    2.04  0.060 / 0.080
G10     123.7          24.0                6.6 +/-    1.62      13.1 +/-    1.62  0.060 / 0.080
G11     258.3          24.0                6.6 +/-    2.23      13.3 +/-    2.23  0.070 / 0.090
G14     30.8           56.1                4.4 +/-    0.71       5.1 +/-    0.71  0.040 / 0.060
G18     243.4          44.9                6.8 +/-    0.96       9.2 +/-    0.96  0.040 / 0.060
G22     314.4          42.5                5.7 +/-    1.42       8.0 +/-    1.42  0.060 / 0.130
G25     59.3           17.5                3.5 +/-    1.06       8.2 +/-    1.06  0.070 / 0.150
G31     92.3           79.5                6.5 +/-    0.35       6.6 +/-    0.35  0.070 / 0.200
G32     56.7           37.5                3.1 +/-    1.45       4.8 +/-    1.45  0.100 / 0.210