PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/28-23:27:40
G05     51.7           10.9                7.3 +/-    2.20      20.0 +/-    2.20  0.210 / 0.330
G10     241.2          18.1               14.8 +/-    2.38      34.2 +/-    2.38  0.140 / 0.360
G13     66.2           34.9               10.1 +/-    1.23      16.0 +/-    1.23  0.130 / 0.700
G15     116.2          56.4               11.5 +/-    0.53      13.4 +/-    0.53  0.160 / 0.650
G16     306.0          15.3                6.8 +/-    2.57      16.8 +/-    2.57  0.110 / 0.360
G20     248.3          22.2                9.1 +/-    0.80      19.0 +/-    0.80  0.140 / 0.260
G21     319.5          51.2               10.7 +/-    1.33      13.4 +/-    1.33  0.060 / 0.060
G26     278.1          19.6               10.2 +/-    1.29      22.6 +/-    1.29  0.050 / 0.080
G29     161.0          65.0               12.1 +/-    0.97      13.2 +/-    0.97  0.040 / 0.050