PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-23:43:10
G10     277.6          43.9                9.3 +/-    1.77      12.7 +/-    1.77  0.080 / 0.120
G13     38.5           10.9                7.9 +/-    4.07      21.5 +/-    4.07  0.070 / 0.130
G15     52.9           44.5                7.5 +/-    0.58      10.2 +/-    0.58  0.040 / 0.040
G20     278.9          39.1               16.6 +/-    0.93      24.6 +/-    0.93  0.040 / 0.040
G21     27.9           76.4                9.1 +/-    0.91       9.4 +/-    0.91  0.120 / 0.200
G24     110.7          19.5               10.4 +/-    1.44      23.1 +/-    1.44  0.090 / 0.170
G27     313.7          25.5                8.3 +/-    1.27      16.1 +/-    1.27  0.190 / 0.340
G29     169.0          22.8               10.3 +/-    1.83      21.2 +/-    1.83  0.090 / 0.310
G32     205.4          19.3               12.9 +/-    3.56      28.8 +/-    3.56  0.040 / 0.040