PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-11:12:40
G01     85.6           32.7                4.4 +/-    2.19       7.2 +/-    2.19  0.030 / 0.030
G07     129.0          41.5                7.9 +/-    0.51      11.2 +/-    0.51  0.020 / 0.020
G11     63.2           37.3                5.8 +/-    0.95       8.8 +/-    0.95  0.090 / 0.090
G13     289.7          37.3                5.7 +/-    3.76       8.6 +/-    3.76  0.080 / 0.100
G17     217.3          59.0                7.8 +/-    1.07       8.9 +/-    1.07  0.040 / 0.090
G18     58.8           22.3                4.0 +/-    2.51       8.4 +/-    2.51  0.050 / 0.110
G19     216.7          26.2                5.4 +/-    1.67      10.3 +/-    1.67  0.060 / 0.060
G28     354.9          61.5                6.1 +/-    0.69       6.8 +/-    0.69  0.050 / 0.050
G30     113.9          74.8                7.9 +/-    0.84       8.2 +/-    0.84  0.100 / 0.240