PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-08:12:50
G01     235.7          26.8                7.9 +/-    2.06      14.9 +/-    2.06  0.080 / 0.170
G03     309.0          58.8                4.0 +/-    1.50       4.6 +/-    1.50  0.120 / 0.170
G14     73.6           32.7                4.2 +/-    0.71       7.0 +/-    0.71  0.040 / 0.040
G16     156.2          30.7                7.0 +/-    1.33      12.1 +/-    1.33  0.030 / 0.040
G18     210.3          16.0                4.5 +/-    2.32      10.8 +/-    2.32  0.040 / 0.060
G22     264.8          75.5                5.3 +/-    0.91       5.5 +/-    0.91  0.040 / 0.060
G23     298.8          31.1                5.5 +/-    1.47       9.4 +/-    1.47  0.080 / 0.110
G26     121.2          48.4                7.3 +/-    1.10       9.4 +/-    1.10  0.090 / 0.110
G31     41.9           43.4                3.2 +/-    1.15       4.4 +/-    1.15  0.060 / 0.140
G32     87.6           16.1                3.7 +/-    1.20       8.9 +/-    1.20  0.060 / 0.140