PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-01:13:10
G01     226.6          17.3                4.9 +/-    1.28      11.6 +/-    1.28  0.030 / 0.030
G03     289.9          66.3                3.3 +/-    0.88       3.5 +/-    0.88  0.030 / 0.030
G14     86.8           23.7                4.6 +/-    1.60       9.2 +/-    1.60  0.100 / 0.170
G16     154.7          41.5                6.8 +/-    0.75       9.6 +/-    0.75  0.110 / 0.240
G22     220.7          71.5                3.8 +/-    0.83       4.0 +/-    0.83  0.050 / 0.070
G23     306.3          35.8                3.3 +/-    1.22       5.2 +/-    1.22  0.050 / 0.080
G26     104.7          55.0                3.4 +/-    0.76       4.1 +/-    0.76  0.040 / 0.060
G31     43.8           36.1                2.8 +/-    0.95       4.3 +/-    0.95  0.040 / 0.080