PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-23:12:30
G10     256.8          31.6               16.5 +/-    1.77      28.0 +/-    1.77  0.040 / 0.050
G13     47.8           25.5               12.6 +/-    2.57      24.4 +/-    2.57  0.040 / 0.050
G15     77.7           57.5               14.5 +/-    1.17      16.9 +/-    1.17  0.170 / 0.490
G16     287.2          15.1                9.4 +/-    3.46      23.3 +/-    3.46  0.120 / 0.500
G20     261.2          28.0               10.0 +/-    3.34      18.2 +/-    3.34  0.160 / 0.200
G21     341.3          64.3               13.3 +/-    0.43      14.6 +/-    0.43  0.150 / 0.190
G26     259.9          12.7               14.9 +/-    2.52      39.2 +/-    2.52  0.030 / 0.040
G29     166.8          43.4               14.0 +/-    0.62      19.3 +/-    0.62  0.040 / 0.040