PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-07:27:50
G01     104.0          25.7                6.6 +/-    0.78      12.6 +/-    0.78  0.030 / 0.030
G07     109.1          56.3                6.2 +/-    0.36       7.3 +/-    0.36  0.030 / 0.030
G08     41.9           20.6                2.5 +/-    0.87       5.3 +/-    0.87  0.060 / 0.130
G09     173.4          11.6                4.0 +/-    2.31      10.7 +/-    2.31  0.070 / 0.160
G11     89.6           44.7                6.7 +/-    0.57       9.0 +/-    0.57  0.050 / 0.070
G13     308.0          30.7                3.8 +/-    1.91       6.6 +/-    1.91  0.050 / 0.080
G17     205.6          37.7                6.8 +/-    2.18      10.4 +/-    2.18  0.040 / 0.070
G19     208.2          16.0                3.0 +/-    3.60       7.4 +/-    3.60  0.040 / 0.060
G28     305.5          57.8                4.7 +/-    0.56       5.4 +/-    0.56  0.030 / 0.060
G30     15.0           78.3                5.5 +/-    0.65       5.6 +/-    0.65  0.030 / 0.050