PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-01:42:50
G01     59.9           30.5                4.3 +/-    0.93       7.5 +/-    0.93  0.030 / 0.050
G06     181.3          13.9                8.0 +/-    2.17      20.4 +/-    2.17  0.030 / 0.050
G07     142.5          22.3                6.8 +/-    0.97      14.2 +/-    0.97  0.020 / 0.030
G11     49.4           25.9                4.0 +/-    1.60       7.7 +/-    1.60  0.040 / 0.030
G13     263.1          35.0                6.8 +/-    1.17      10.9 +/-    1.17  0.040 / 0.070
G15     292.9          16.8                3.7 +/-    1.56       8.8 +/-    1.56  0.040 / 0.100
G17     256.9          74.9                5.9 +/-    0.71       6.1 +/-    0.71  0.050 / 0.130
G19     233.2          51.3                9.7 +/-    1.72      12.0 +/-    1.72  0.060 / 0.120
G28     37.3           56.2                3.9 +/-    0.36       4.6 +/-    0.36  0.080 / 0.170
G30     143.0          47.7                6.8 +/-    0.85       8.8 +/-    0.85  0.070 / 0.170