PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-16:28:00
G02     226.4          68.0               16.2 +/-    0.95      17.4 +/-    0.95  0.030 / 0.050
G06     44.0           65.8               14.4 +/-    0.66      15.6 +/-    0.66  0.030 / 0.050
G12     321.1          45.5               13.8 +/-    0.60      18.5 +/-    0.60  0.060 / 0.080
G17     67.3           24.0               13.9 +/-    0.85      27.8 +/-    0.85  0.070 / 0.090
G19     52.4           41.1               12.7 +/-    1.15      18.2 +/-    1.15  0.060 / 0.100
G24     255.0          38.4               16.2 +/-    2.34      24.2 +/-    2.34  0.080 / 0.100