PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/29-23:57:50
G01     229.8          22.6                9.2 +/-    2.28      19.1 +/-    2.28  0.050 / 0.030
G03     304.7          60.8                5.7 +/-    0.91       6.5 +/-    0.91  0.040 / 0.040
G14     76.6           32.6                6.0 +/-    0.82      10.0 +/-    0.82  0.110 / 0.220
G16     150.2          37.4                8.3 +/-    0.72      12.6 +/-    0.72  0.090 / 0.200
G22     250.1          74.4                6.3 +/-    0.70       6.5 +/-    0.70  0.080 / 0.120
G23     301.5          32.2                7.3 +/-    1.17      12.1 +/-    1.17  0.070 / 0.090
G26     111.2          51.5                6.9 +/-    1.03       8.6 +/-    1.03  0.060 / 0.130
G31     43.2           38.5                3.8 +/-    0.62       5.7 +/-    0.62  0.060 / 0.140