PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-13:28:10
G02     210.5          46.1                7.7 +/-    1.47      10.2 +/-    1.47  0.070 / 0.110
G06     98.6           79.1                6.8 +/-    0.85       6.9 +/-    0.85  0.070 / 0.110
G12     315.6          30.0                5.9 +/-    1.62      10.3 +/-    1.62  0.030 / 0.030
G17     50.2           37.3                4.5 +/-    0.95       6.8 +/-    0.95  0.030 / 0.030
G19     19.4           58.7                7.2 +/-    0.51       8.3 +/-    0.51  0.060 / 0.070
G24     275.7          43.5                7.6 +/-    1.36      10.4 +/-    1.36  0.040 / 0.060
G28     115.0          21.8                6.7 +/-    1.38      14.2 +/-    1.38  0.050 / 0.050