PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-16:42:50
G02     238.4          73.0                8.8 +/-    0.47       9.2 +/-    0.47  0.150 / 0.480
G05     172.4          14.9                8.1 +/-    1.71      20.1 +/-    1.71  0.050 / 0.060
G06     40.7           58.6                8.6 +/-    0.92       9.9 +/-    0.92  0.030 / 0.060
G12     321.1          50.2                8.2 +/-    0.99      10.3 +/-    0.99  0.100 / 0.120
G17     67.7           26.0                8.2 +/-    0.95      15.6 +/-    0.95  0.090 / 0.110
G19     56.9           37.7                8.4 +/-    0.39      12.7 +/-    0.39  0.100 / 0.290
G24     247.0          35.1               10.6 +/-    1.00      16.8 +/-    1.00  0.120 / 0.330
G25     316.0          10.6              -14.9 +/-   26.28     -41.0 +/-   26.28  0.030 / 0.050