PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-10:28:10
G01     75.5           32.5                4.5 +/-    0.54       7.5 +/-    0.54  0.050 / 0.060
G07     133.8          33.9                6.3 +/-    1.24      10.2 +/-    1.24  0.060 / 0.050
G11     58.1           35.9                3.9 +/-    1.12       6.2 +/-    1.12  0.090 / 0.140
G13     280.0          39.0                4.9 +/-    1.24       7.2 +/-    1.24  0.100 / 0.140
G15     308.1          13.1                2.8 +/-    2.02       7.4 +/-    2.02  0.030 / 0.050
G17     223.4          61.5                7.8 +/-    1.04       8.7 +/-    1.04  0.030 / 0.040
G18     52.6           20.4                2.4 +/-    0.94       5.2 +/-    0.94  0.070 / 0.090
G19     219.4          39.1                8.5 +/-    1.95      12.6 +/-    1.95  0.090 / 0.080
G28     354.9          61.5                5.0 +/-    0.91       5.6 +/-    0.91  0.070 / 0.230
G30     129.0          68.4                6.1 +/-    0.66       6.5 +/-    0.66  0.100 / 0.270