PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-18:28:10
G02     202.3          28.5               14.5 +/-    1.43      26.2 +/-    1.43  0.140 / 0.220
G06     162.2          64.9               12.4 +/-    0.38      13.6 +/-    0.38  0.120 / 0.180
G12     305.5          13.8               10.1 +/-    2.88      25.8 +/-    2.88  0.080 / 0.080
G17     30.3           53.7               10.1 +/-    0.95      12.2 +/-    0.95  0.080 / 0.090
G19     341.6          68.5               10.1 +/-    0.47      10.8 +/-    0.47  0.050 / 0.040
G24     302.3          36.1               11.0 +/-    1.85      17.2 +/-    1.85  0.060 / 0.040
G28     97.5           34.5               11.2 +/-    0.92      17.9 +/-    0.92  0.050 / 0.040