PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-06:27:50
G01     226.9          17.7                4.7 +/-    2.84      10.9 +/-    2.84  0.030 / 0.040
G03     291.8          65.7                2.8 +/-    1.31       3.0 +/-    1.31  0.040 / 0.050
G14     85.3           25.8                4.3 +/-    1.06       8.2 +/-    1.06  0.140 / 0.430
G16     143.7          45.5                6.5 +/-    0.61       8.7 +/-    0.61  0.180 / 0.400
G22     221.3          71.4                3.7 +/-    1.19       3.9 +/-    1.19  0.100 / 0.200
G23     306.6          36.5                2.9 +/-    0.78       4.5 +/-    0.78  0.100 / 0.200
G26     95.0           53.4                4.1 +/-    0.49       5.0 +/-    0.49  0.040 / 0.080
G31     45.6           30.8                1.9 +/-    0.39       3.3 +/-    0.39  0.040 / 0.080