PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-10:42:50
G01     265.7          41.0                4.8 +/-    0.87       6.9 +/-    0.87  0.060 / 0.040
G03     316.8          36.3                4.0 +/-    1.40       6.2 +/-    1.40  0.050 / 0.040
G10     131.2          13.3                6.5 +/-    2.39      16.9 +/-    2.39  0.120 / 0.300
G11     247.0          18.0                4.2 +/-    1.99       9.8 +/-    1.99  0.150 / 0.220
G14     47.1           47.9                3.5 +/-    0.49       4.5 +/-    0.49  0.060 / 0.080
G18     228.9          36.5                5.2 +/-    1.21       8.0 +/-    1.21  0.100 / 0.080
G22     313.4          58.3                4.4 +/-    0.92       5.0 +/-    0.92  0.040 / 0.070
G25     49.7           15.3                1.9 +/-    1.74       4.6 +/-    1.74  0.040 / 0.090
G31     51.1           71.2                3.3 +/-    0.44       3.5 +/-    0.44  0.180 / 0.490
G32     64.0           34.2                2.5 +/-    0.65       4.0 +/-    0.65  0.160 / 0.410