PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-08:13:10
G07     335.3          59.2                4.6 +/-    0.94       5.3 +/-    0.94  0.040 / 0.050
G08     107.1          51.9                6.2 +/-    0.47       7.6 +/-    0.47  0.040 / 0.050
G09     191.6          74.8                4.0 +/-    0.69       4.2 +/-    0.69  0.050 / 0.070
G11     147.1          13.1                2.8 +/-    2.12       7.3 +/-    2.12  0.050 / 0.080
G23     154.3          40.6                5.8 +/-    0.89       8.4 +/-    0.89  0.090 / 0.210
G27     56.7           32.5                3.4 +/-    0.32       5.7 +/-    0.32  0.110 / 0.250
G28     234.5          22.2                5.7 +/-    1.63      11.9 +/-    1.63  0.050 / 0.080
G30     300.6          33.9                5.8 +/-    1.95       9.4 +/-    1.95  0.040 / 0.080