PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-01:12:40
G01     123.0          15.0                8.3 +/-    3.81      20.6 +/-    3.81  0.090 / 0.090
G07     67.7           68.4                7.0 +/-    0.30       7.5 +/-    0.30  0.100 / 0.070
G08     47.8           36.7                5.5 +/-    0.89       8.5 +/-    0.89  0.160 / 0.260
G09     178.3          31.7                9.5 +/-    0.67      16.1 +/-    0.67  0.140 / 0.270
G11     115.1          37.4                8.4 +/-    1.05      12.7 +/-    1.05  0.040 / 0.060
G13     320.0          14.9                3.9 +/-    2.64       9.8 +/-    2.64  0.070 / 0.050
G17     201.0          19.4                7.7 +/-    1.86      17.3 +/-    1.86  0.050 / 0.030
G28     285.7          55.9                6.2 +/-    2.75       7.4 +/-    2.75  0.030 / 0.030
G30     347.0          67.4                4.7 +/-    0.82       5.1 +/-    0.82  0.170 / 0.220