PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/10-06:58:00
G01     246.7          34.5                5.7 +/-    2.01       9.2 +/-    2.01  0.030 / 0.040
G03     315.7          47.2                4.3 +/-    1.45       5.6 +/-    1.45  0.030 / 0.040
G14     61.9           39.9                3.3 +/-    1.18       4.8 +/-    1.18  0.050 / 0.070
G16     161.7          20.0               -5.4 +/-   11.51     -11.9 +/-   11.51  0.050 / 0.080
G18     217.9          25.1                4.5 +/-    2.24       8.7 +/-    2.24  0.090 / 0.110
G22     300.6          68.4                3.8 +/-    0.35       4.1 +/-    0.35  0.090 / 0.100
G23     290.2          24.4               -0.1 +/-    5.16      -0.2 +/-    5.16  0.050 / 0.090
G26     134.5          39.9                5.1 +/-    1.02       7.4 +/-    1.02  0.050 / 0.090
G31     41.5           54.6                3.3 +/-    0.50       4.0 +/-    0.50  0.130 / 0.250
G32     78.2           22.8                3.6 +/-    1.66       7.5 +/-    1.66  0.140 / 0.190