PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/18-15:12:50
G01     235.5          26.1                8.6 +/-    1.51      16.3 +/-    1.51  0.170 / 0.150
G03     306.6          61.8                6.6 +/-    0.97       7.4 +/-    0.97  0.110 / 0.130
G14     75.4           31.0                5.9 +/-    1.64      10.1 +/-    1.64  0.080 / 0.120
G16     160.1          29.0                8.0 +/-    1.81      14.2 +/-    1.81  0.060 / 0.100
G18     208.3          14.6                8.8 +/-    2.18      22.1 +/-    2.18  0.040 / 0.050
G22     247.6          76.9                8.4 +/-    0.45       8.6 +/-    0.45  0.040 / 0.050
G23     297.5          28.1                4.6 +/-    2.02       8.4 +/-    2.02  0.030 / 0.030
G26     125.4          48.6                8.7 +/-    0.55      11.2 +/-    0.55  0.030 / 0.030
G31     41.1           45.6                5.7 +/-    1.13       7.6 +/-    1.13  0.090 / 0.200
G32     87.7           17.4                6.6 +/-    1.20      15.6 +/-    1.20  0.080 / 0.180