PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-06:27:40
G01     60.5           30.6                3.2 +/-    0.83       5.5 +/-    0.83  0.030 / 0.050
G06     183.5          11.0              -10.2 +/-   33.02     -27.9 +/-   33.02  0.030 / 0.050
G07     142.1          22.1                6.7 +/-    1.59      14.0 +/-    1.59  0.030 / 0.020
G11     48.8           24.1                3.1 +/-    2.57       6.2 +/-    2.57  0.030 / 0.020
G13     264.5          35.1                6.5 +/-    1.65      10.3 +/-    1.65  0.100 / 0.200
G15     293.7          16.8                2.4 +/-    0.91       5.8 +/-    0.91  0.110 / 0.170
G17     261.0          77.0                5.9 +/-    0.33       6.1 +/-    0.33  0.180 / 0.300
G19     232.8          51.8                6.4 +/-    2.33       7.8 +/-    2.33  0.100 / 0.260
G28     36.4           56.4                5.7 +/-    0.75       6.6 +/-    0.75  0.070 / 0.110
G30     142.8          51.0                6.8 +/-    0.56       8.4 +/-    0.56  0.080 / 0.140