PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-04:27:30
G10     262.1          35.0                9.7 +/-    1.65      15.4 +/-    1.65  0.110 / 0.310
G13     44.4           22.0                6.0 +/-    2.66      12.6 +/-    2.66  0.110 / 0.360
G15     65.2           52.4                6.6 +/-    0.61       8.1 +/-    0.61  0.040 / 0.030
G16     282.6          13.6               11.6 +/-    1.62      29.8 +/-    1.62  0.040 / 0.030
G20     313.2          66.9                6.7 +/-    0.50       7.2 +/-    0.50  0.140 / 0.210
G21     351.3          68.5                6.8 +/-    0.80       7.3 +/-    0.80  0.150 / 0.260
G24     123.8          11.5                4.0 +/-    3.42      10.8 +/-    3.42  0.220 / 0.300
G27     320.4          15.4                8.9 +/-    1.48      21.9 +/-    1.48  0.270 / 0.280
G29     167.7          36.9                6.5 +/-    1.31       9.9 +/-    1.31  0.280 / 0.270