PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-21:27:30
G10     244.8          21.8               16.8 +/-    1.50      35.4 +/-    1.50  0.030 / 0.050
G13     60.5           33.1               10.6 +/-    1.57      17.4 +/-    1.57  0.040 / 0.050
G15     109.0          58.5               12.2 +/-    1.02      14.0 +/-    1.02  0.130 / 0.440
G16     301.0          16.1                9.4 +/-    3.00      22.7 +/-    3.00  0.130 / 0.460
G20     247.6          9.4                12.4 +/-    2.88      35.0 +/-    2.88  0.060 / 0.100
G21     324.2          54.4               11.4 +/-    0.48      13.7 +/-    0.48  0.080 / 0.100
G26     273.1          18.3               12.4 +/-    1.20      28.4 +/-    1.20  0.030 / 0.040
G29     163.0          59.5               13.2 +/-    1.25      15.0 +/-    1.25  0.020 / 0.040