PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-06:12:40
G08     318.0          13.6                6.4 +/-    1.14      16.4 +/-    1.14  0.040 / 0.040
G10     314.6          57.0                5.6 +/-    0.98       6.6 +/-    0.98  0.040 / 0.040
G14     212.8          21.3                8.9 +/-    2.41      19.1 +/-    2.41  0.030 / 0.040
G15     45.6           18.2                4.1 +/-    1.33       9.5 +/-    1.33  0.040 / 0.050
G20     16.0           63.7                7.9 +/-    0.87       8.7 +/-    0.87  0.060 / 0.080
G21     120.6          65.8                9.0 +/-    0.90       9.8 +/-    0.90  0.060 / 0.090
G24     85.8           29.2                7.1 +/-    1.06      12.6 +/-    1.06  0.100 / 0.260
G27     290.4          36.8                7.7 +/-    0.90      11.8 +/-    0.90  0.110 / 0.230
G32     215.7          37.8                9.2 +/-    2.96      13.9 +/-    2.96  0.060 / 0.130