PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-08:27:50
G01     317.6          21.2                4.5 +/-    3.24       9.7 +/-    3.24  0.040 / 0.060
G08     255.9          11.1                8.0 +/-    2.00      21.7 +/-    2.00  0.040 / 0.060
G10     86.0           50.9                5.5 +/-    0.79       6.9 +/-    0.79  0.130 / 0.220
G11     300.0          24.3                7.2 +/-    1.93      14.4 +/-    1.93  0.120 / 0.210
G14     298.0          69.1                5.3 +/-    0.67       5.6 +/-    0.67  0.120 / 0.240
G18     301.0          42.5                7.8 +/-    1.02      10.8 +/-    1.02  0.110 / 0.210
G20     112.1          14.0                5.6 +/-    1.65      14.3 +/-    1.65  0.030 / 0.040
G22     303.7          16.6                3.5 +/-    3.28       8.3 +/-    3.28  0.030 / 0.040
G31     172.6          48.6                6.6 +/-    0.61       8.5 +/-    0.61  0.110 / 0.440
G32     18.4           63.1                4.3 +/-    0.71       4.8 +/-    0.71  0.120 / 0.480