PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-14:42:50
G10     249.5          26.4                6.7 +/-    0.80      12.7 +/-    0.80  0.040 / 0.050
G13     54.6           30.2                5.8 +/-    0.76      10.1 +/-    0.76  0.030 / 0.060
G15     91.5           58.4                6.5 +/-    0.55       7.5 +/-    0.55  0.090 / 0.120
G16     298.4          15.0                2.1 +/-    2.48       5.3 +/-    2.48  0.090 / 0.110
G20     268.2          50.1                6.1 +/-    0.92       7.7 +/-    0.92  0.060 / 0.160
G21     336.9          61.3                4.8 +/-    0.70       5.4 +/-    0.70  0.050 / 0.160
G26     271.7          15.8                5.6 +/-    1.39      13.6 +/-    1.39  0.030 / 0.060
G29     163.0          50.0                8.1 +/-    2.66      10.2 +/-    2.66  0.030 / 0.050