PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/23-02:12:50
G08     261.3          16.3               11.4 +/-    2.19      27.4 +/-    2.19  0.050 / 0.110
G10     69.7           56.2                8.6 +/-    1.11      10.1 +/-    1.11  0.050 / 0.110
G11     307.6          20.6                8.4 +/-    1.26      18.3 +/-    1.26  0.180 / 0.410
G14     276.5          67.9                9.3 +/-    0.46       9.9 +/-    0.46  0.210 / 0.380
G18     309.5          35.8               10.4 +/-    2.28      16.3 +/-    2.28  0.030 / 0.030
G20     66.1           65.9               11.3 +/-    0.89      12.2 +/-    0.89  0.030 / 0.040
G21     155.7          12.1                8.7 +/-    1.65      23.1 +/-    1.65  0.090 / 0.100
G27     228.7          12.9                9.6 +/-   15.40      25.1 +/-   15.40  0.100 / 0.100
G31     175.6          37.0               12.6 +/-    1.42      19.2 +/-    1.42  0.250 / 0.410
G32     358.9          70.8                9.7 +/-    0.90      10.2 +/-    0.90  0.170 / 0.460