PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-19:58:00
G01     49.9           25.4               10.5 +/-    1.15      20.4 +/-    1.15  0.050 / 0.100
G06     177.0          26.1               16.2 +/-    1.73      30.8 +/-    1.73  0.050 / 0.080
G07     146.4          12.6               16.6 +/-    3.78      43.8 +/-    3.78  0.070 / 0.340
G11     44.8           15.6                9.8 +/-    2.13      24.1 +/-    2.13  0.070 / 0.280
G13     250.4          30.2               14.2 +/-    1.88      24.7 +/-    1.88  0.070 / 0.330
G15     284.1          15.5               12.1 +/-    1.95      29.8 +/-    1.95  0.070 / 0.300
G17     300.8          77.7               12.1 +/-    0.67      12.4 +/-    0.67  0.120 / 0.580
G19     246.2          58.5               13.6 +/-    0.86      15.6 +/-    0.86  0.110 / 0.470
G28     53.1           52.7               10.8 +/-    0.18      13.2 +/-    0.18  0.040 / 0.050
G30     149.7          40.5               14.0 +/-    1.04      20.3 +/-    1.04  0.030 / 0.060