PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/20-21:58:10
G01     89.4           31.6               10.7 +/-    0.85      18.1 +/-    0.85  0.030 / 0.060
G07     126.5          40.1               11.4 +/-    0.58      16.6 +/-    0.58  0.040 / 0.050
G11     66.4           39.1                9.9 +/-    2.12      14.6 +/-    2.12  0.100 / 0.120
G13     293.6          36.9                6.1 +/-    2.89       9.3 +/-    2.89  0.070 / 0.120
G17     213.6          55.6               12.4 +/-    0.75      14.7 +/-    0.75  0.080 / 0.110
G18     60.6           22.4                8.3 +/-    2.12      17.2 +/-    2.12  0.080 / 0.130
G19     214.2          27.2               13.3 +/-    1.38      24.7 +/-    1.38  0.050 / 0.050
G28     341.3          61.7                8.1 +/-    0.57       9.1 +/-    0.57  0.040 / 0.050
G30     106.7          75.3               10.6 +/-    0.84      10.9 +/-    0.84  0.030 / 0.030