PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-22:12:50
G10     262.8          35.8               13.9 +/-    1.04      21.8 +/-    1.04  0.160 / 0.250
G13     43.9           21.1                9.6 +/-    1.59      20.5 +/-    1.59  0.140 / 0.270
G15     68.0           55.0               10.2 +/-    0.69      12.1 +/-    0.69  0.050 / 0.040
G16     281.0          13.7                9.3 +/-    1.91      23.8 +/-    1.91  0.050 / 0.040
G20     262.6          22.8               14.2 +/-    1.20      29.3 +/-    1.20  0.270 / 0.370
G21     351.0          68.6               10.1 +/-    0.66      10.8 +/-    0.66  0.220 / 0.330
G24     121.9          12.0               13.3 +/-    1.79      35.4 +/-    1.79  0.120 / 0.420
G27     320.4          15.3                9.8 +/-    1.23      24.2 +/-    1.23  0.170 / 0.330
G29     167.9          36.8               12.8 +/-    0.91      19.7 +/-    0.91  0.070 / 0.290