PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-05:57:50
G10     262.0          34.9                6.2 +/-    1.55       9.8 +/-    1.55  0.120 / 0.340
G13     44.5           22.1                4.8 +/-    1.69      10.0 +/-    1.69  0.120 / 0.360
G15     64.6           51.8                5.8 +/-    1.02       7.1 +/-    1.02  0.030 / 0.040
G16     282.9          13.5                3.5 +/-    2.31       9.1 +/-    2.31  0.040 / 0.040
G20     350.5          69.0                5.3 +/-    0.39       5.6 +/-    0.39  0.040 / 0.030
G21     352.0          68.7                5.0 +/-    0.58       5.3 +/-    0.58  0.040 / 0.030
G24     124.1          11.4                6.1 +/-    2.36      16.5 +/-    2.36  0.310 / 0.310
G27     320.3          15.5                2.1 +/-    2.25       5.1 +/-    2.25  0.160 / 0.190
G29     167.6          36.6                5.2 +/-    1.21       7.9 +/-    1.21  0.140 / 0.280