PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-22:57:40
G10     244.8          21.7               15.9 +/-    2.40      33.6 +/-    2.40  0.110 / 0.620
G13     60.6           33.2                9.2 +/-    0.78      15.1 +/-    0.78  0.130 / 0.560
G15     107.2          58.3               11.0 +/-    0.60      12.7 +/-    0.60  0.040 / 0.060
G16     301.2          16.0                6.8 +/-    2.59      16.5 +/-    2.59  0.030 / 0.060
G20     250.6          20.5                8.0 +/-    1.06      17.4 +/-    1.06  0.090 / 0.170
G21     324.4          54.5                9.4 +/-    1.11      11.3 +/-    1.11  0.110 / 0.190
G26     273.1          18.3               11.4 +/-    2.11      26.1 +/-    2.11  0.030 / 0.050
G29     163.0          59.4               11.5 +/-    1.15      13.1 +/-    1.15  0.030 / 0.050