PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/21-06:43:00
G01     233.9          25.5                8.1 +/-    2.15      15.6 +/-    2.15  0.080 / 0.120
G03     307.6          59.6                5.3 +/-    1.27       6.0 +/-    1.27  0.080 / 0.130
G14     75.0           32.0                3.3 +/-    1.89       5.5 +/-    1.89  0.100 / 0.190
G16     154.4          32.9                6.2 +/-    0.87      10.2 +/-    0.87  0.240 / 0.230
G18     209.4          14.7                6.3 +/-    3.50      15.7 +/-    3.50  0.050 / 0.040
G22     260.2          75.2                6.8 +/-    0.67       7.1 +/-    0.67  0.040 / 0.040
G23     301.0          33.5                5.3 +/-    1.19       8.7 +/-    1.19  0.090 / 0.110
G26     117.8          49.5                6.2 +/-    0.59       7.8 +/-    0.59  0.100 / 0.120
G31     42.4           41.3                2.3 +/-    0.96       3.3 +/-    0.96  0.040 / 0.040
G32     89.4           14.3                3.6 +/-    1.88       9.1 +/-    1.88  0.040 / 0.050