PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-01:57:40
G08     304.7          21.1                7.4 +/-    3.04      15.8 +/-    3.04  0.080 / 0.090
G10     341.7          61.3                7.8 +/-    0.40       8.7 +/-    0.40  0.070 / 0.090
G14     220.9          33.6               12.3 +/-    2.56      20.0 +/-    2.56  0.080 / 0.160
G20     347.9          64.2               16.9 +/-    0.37      18.6 +/-    0.37  0.090 / 0.160
G21     138.7          53.5                9.6 +/-    0.59      11.6 +/-    0.59  0.050 / 0.080
G24     67.1           28.7                6.8 +/-    0.89      12.3 +/-    0.89  0.040 / 0.090
G27     268.9          36.4               10.5 +/-    1.71      16.3 +/-    1.71  0.040 / 0.040
G32     228.2          58.9               12.2 +/-    0.46      14.0 +/-    0.46  0.030 / 0.030