PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-03:27:50
G01     320.1          14.7              -15.0 +/-   30.20     -37.5 +/-   30.20  0.140 / 0.380
G08     259.9          15.1                8.5 +/-    2.09      21.0 +/-    2.09  0.100 / 0.310
G10     73.8           55.1                5.9 +/-    0.37       7.0 +/-    0.37  0.040 / 0.050
G11     305.9          21.6                5.0 +/-    1.80      10.7 +/-    1.80  0.040 / 0.050
G14     281.7          68.4                7.6 +/-    0.56       8.1 +/-    0.56  0.080 / 0.290
G18     307.8          37.5                5.0 +/-    2.21       7.5 +/-    2.21  0.080 / 0.290
G20     85.6           56.5               21.5 +/-    0.54      25.2 +/-    0.54  0.150 / 0.410
G27     226.8          11.3               10.8 +/-    2.47      29.4 +/-    2.47  0.160 / 0.410
G31     175.0          39.7                9.9 +/-    1.21      14.4 +/-    1.21  0.160 / 0.250
G32     4.4            69.1                6.6 +/-    0.47       7.0 +/-    0.47  0.160 / 0.240