PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-11:58:00
G01     234.6          25.6                4.5 +/-    2.76       8.7 +/-    2.76  0.030 / 0.030
G03     305.2          63.4                2.0 +/-    0.75       2.2 +/-    0.75  0.040 / 0.030
G14     75.8           30.9                4.5 +/-    1.14       7.7 +/-    1.14  0.040 / 0.050
G16     157.4          31.2                5.6 +/-    1.20       9.5 +/-    1.20  0.040 / 0.060
G18     208.7          14.5                2.9 +/-    2.02       7.4 +/-    2.02  0.080 / 0.140
G22     244.0          76.8                4.9 +/-    0.76       5.0 +/-    0.76  0.090 / 0.170
G23     298.8          30.0                2.9 +/-    1.36       5.1 +/-    1.36  0.070 / 0.170
G26     121.2          49.3                4.8 +/-    0.93       6.0 +/-    0.93  0.070 / 0.120
G31     41.9           43.1                2.9 +/-    0.91       4.0 +/-    0.91  0.070 / 0.140
G32     88.3           16.8                4.9 +/-    1.69      11.7 +/-    1.69  0.060 / 0.160