PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-11:27:40
G01     63.7           31.5                5.3 +/-    1.94       9.0 +/-    1.94  0.050 / 0.110
G06     182.0          11.0              -11.0 +/-   29.79     -30.0 +/-   29.79  0.070 / 0.100
G07     140.5          23.5                5.0 +/-    1.85      10.2 +/-    1.85  0.060 / 0.130
G11     49.5           24.6                4.1 +/-    1.50       8.2 +/-    1.50  0.060 / 0.130
G13     269.1          35.8                5.7 +/-    1.07       8.9 +/-    1.07  0.040 / 0.040
G15     298.0          16.0                2.8 +/-    2.51       6.7 +/-    2.51  0.040 / 0.030
G17     252.3          76.5                5.0 +/-    0.49       5.2 +/-    0.49  0.140 / 0.290
G19     229.8          49.6                7.1 +/-    2.44       9.0 +/-    2.44  0.120 / 0.240
G28     31.0           57.4                4.2 +/-    1.41       4.9 +/-    1.41  0.030 / 0.030
G30     140.7          56.8                5.7 +/-    0.84       6.6 +/-    0.84  0.030 / 0.030