PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/14-07:27:50
G01     62.8           31.4                3.6 +/-    0.90       6.2 +/-    0.90  0.040 / 0.040
G07     140.9          23.0                5.6 +/-    1.09      11.5 +/-    1.09  0.040 / 0.050
G11     48.6           24.3                3.4 +/-    0.66       6.7 +/-    0.66  0.050 / 0.190
G13     265.1          36.4                6.2 +/-    1.51       9.5 +/-    1.51  0.050 / 0.170
G15     298.6          15.0                1.1 +/-    1.82       2.7 +/-    1.82  0.050 / 0.100
G17     255.1          77.3                5.4 +/-    0.90       5.6 +/-    0.90  0.050 / 0.080
G18     42.2           12.5                1.2 +/-    0.71       3.3 +/-    0.71  0.100 / 0.210
G19     229.4          45.3                7.7 +/-    0.85      10.3 +/-    0.85  0.120 / 0.190
G28     28.6           58.3                3.8 +/-    0.32       4.4 +/-    0.32  0.080 / 0.140
G30     142.3          56.7                5.7 +/-    1.24       6.6 +/-    1.24  0.080 / 0.110