PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-03:58:10
G01     47.7           23.6                3.0 +/-    1.34       6.0 +/-    1.34  0.030 / 0.060
G06     179.5          25.7                5.0 +/-    1.66       9.6 +/-    1.66  0.030 / 0.060
G07     147.2          9.7                 5.5 +/-    1.32      15.3 +/-    1.32  0.080 / 0.130
G11     44.5           14.0                2.0 +/-    1.59       5.1 +/-    1.59  0.080 / 0.110
G13     248.4          28.6                5.0 +/-    2.44       9.0 +/-    2.44  0.180 / 0.370
G15     279.8          15.5                3.4 +/-    1.41       8.3 +/-    1.41  0.200 / 0.430
G17     326.6          77.4                4.3 +/-    0.45       4.4 +/-    0.45  0.030 / 0.020
G19     253.3          63.2                4.2 +/-    0.58       4.7 +/-    0.58  0.020 / 0.020
G28     58.0           51.1                3.0 +/-    0.75       3.8 +/-    0.75  0.120 / 0.300
G30     150.1          34.7                5.6 +/-    0.74       8.9 +/-    0.74  0.120 / 0.400