PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-12:57:40
G10     296.7          51.3                4.5 +/-    1.32       5.6 +/-    1.32  0.050 / 0.190
G14     210.5          10.6               -7.7 +/-   13.20     -21.1 +/-   13.20  0.060 / 0.190
G15     45.9           26.8                2.8 +/-    0.98       5.3 +/-    0.98  0.060 / 0.090
G20     69.4           22.7                2.3 +/-    2.06       4.8 +/-    2.06  0.070 / 0.090
G21     100.6          71.9                3.6 +/-    0.84       3.8 +/-    0.84  0.480 / 0.660
G24     98.5           26.5                5.3 +/-    1.91      10.1 +/-    1.91  0.440 / 0.500
G27     299.5          34.8                5.1 +/-    1.31       8.2 +/-    1.31  0.030 / 0.040
G32     210.6          32.5                4.6 +/-    2.02       7.7 +/-    2.02  0.030 / 0.040