PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-21:27:40
G10     244.8          21.8               16.6 +/-    1.89      35.0 +/-    1.89  0.040 / 0.060
G13     60.5           33.1               10.8 +/-    0.86      17.7 +/-    0.86  0.040 / 0.070
G15     109.0          58.5               12.4 +/-    0.43      14.3 +/-    0.43  0.120 / 0.680
G16     301.0          16.1                7.8 +/-    2.03      18.9 +/-    2.03  0.150 / 0.520
G20     247.6          9.4                 7.6 +/-    0.83      21.6 +/-    0.83  0.050 / 0.140
G21     324.2          54.4               11.7 +/-    0.92      14.1 +/-    0.92  0.060 / 0.150
G26     273.1          18.3               11.8 +/-    0.91      27.0 +/-    0.91  0.030 / 0.040
G29     163.0          59.5               13.8 +/-    0.92      15.7 +/-    0.92  0.030 / 0.050