PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-12:58:00
G03     218.6          62.2                9.0 +/-    0.93      10.0 +/-    0.93  0.130 / 0.420
G07     253.1          11.7                4.4 +/-    3.18      11.7 +/-    3.18  0.130 / 0.420
G09     307.8          24.3                6.3 +/-    1.19      12.4 +/-    1.19  0.110 / 0.420
G14     104.6          13.1                8.9 +/-    1.42      23.3 +/-    1.42  0.080 / 0.470
G16     104.7          63.2                9.3 +/-    0.95      10.2 +/-    0.95  0.060 / 0.080
G22     186.9          44.3                9.9 +/-    0.96      13.5 +/-    0.96  0.070 / 0.080
G23     330.0          59.0                6.0 +/-    0.91       6.9 +/-    0.91  0.040 / 0.060
G26     57.0           45.2                6.1 +/-    1.11       8.2 +/-    1.11  0.040 / 0.050
G31     57.2           11.8                7.6 +/-    2.23      20.5 +/-    2.23  0.040 / 0.050