PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-21:27:40
G05     52.1           10.6                8.9 +/-    2.21      24.6 +/-    2.21  0.120 / 0.280
G10     242.1          19.1               15.2 +/-    1.39      34.1 +/-    1.39  0.170 / 0.350
G13     64.6           34.5               10.7 +/-    0.71      17.2 +/-    0.71  0.060 / 0.070
G15     116.2          57.1               12.8 +/-    0.87      14.9 +/-    0.87  0.030 / 0.080
G16     304.5          15.6                8.6 +/-    1.88      21.1 +/-    1.88  0.130 / 0.650
G20     245.5          7.8                 5.5 +/-    1.61      16.0 +/-    1.61  0.120 / 0.590
G21     320.5          51.9               12.7 +/-    1.52      15.7 +/-    1.52  0.060 / 0.140
G26     276.7          19.4               10.5 +/-    1.98      23.5 +/-    1.98  0.060 / 0.160
G29     161.5          63.7               13.0 +/-    1.00      14.3 +/-    1.00  0.040 / 0.050