PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/19-01:58:00
G01     249.8          34.7                6.6 +/-    1.38      10.5 +/-    1.38  0.040 / 0.050
G03     315.7          43.0                5.0 +/-    1.47       6.9 +/-    1.47  0.030 / 0.050
G11     235.3          12.3                6.2 +/-    3.73      16.6 +/-    3.73  0.020 / 0.040
G14     62.4           39.1                4.0 +/-    0.48       5.8 +/-    0.48  0.030 / 0.050
G16     166.1          16.7                8.4 +/-    2.56      20.1 +/-    2.56  0.080 / 0.210
G22     304.1          66.0                5.4 +/-    0.51       5.9 +/-    0.51  0.080 / 0.240
G23     286.8          18.6                6.3 +/-    1.40      14.3 +/-    1.40  0.050 / 0.110
G26     141.2          37.0                8.8 +/-    0.80      13.5 +/-    0.80  0.090 / 0.110
G31     39.5           61.9                3.9 +/-    0.30       4.4 +/-    0.30  0.060 / 0.100
G32     76.9           24.7                5.2 +/-    1.22      10.2 +/-    1.22  0.050 / 0.090