PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-15:28:00
G03     307.1          61.0                7.7 +/-    1.02       8.7 +/-    1.02  0.080 / 0.110
G14     72.5           34.9                6.9 +/-    1.08      10.9 +/-    1.08  0.070 / 0.120
G16     155.5          31.9               12.9 +/-    1.43      21.8 +/-    1.43  0.030 / 0.040
G18     212.5          17.2               10.2 +/-    2.31      24.2 +/-    2.31  0.040 / 0.030
G22     253.6          77.2                9.8 +/-    0.41      10.0 +/-    0.41  0.080 / 0.100
G23     298.7          30.8                9.2 +/-    0.87      15.9 +/-    0.87  0.080 / 0.110
G26     118.2          48.6               10.6 +/-    0.69      13.6 +/-    0.69  0.040 / 0.050
G31     41.6           43.0                6.0 +/-    1.47       8.3 +/-    1.47  0.040 / 0.050
G32     89.3           13.3                7.1 +/-    3.73      18.5 +/-    3.73  0.050 / 0.040