PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-05:27:30
G02     229.8          73.4                4.8 +/-    0.27       5.0 +/-    0.27  0.240 / 0.380
G05     173.1          12.3                3.2 +/-    4.62       8.6 +/-    4.62  0.220 / 0.350
G06     42.9           66.6                4.1 +/-    0.58       4.5 +/-    0.58  0.030 / 0.030
G12     320.8          45.1                4.1 +/-    0.47       5.5 +/-    0.47  0.030 / 0.020
G17     66.1           26.7                0.5 +/-    1.03       1.0 +/-    1.03  0.040 / 0.040
G19     52.2           41.7                1.7 +/-    1.47       2.3 +/-    1.47  0.030 / 0.050
G24     252.3          37.7                4.3 +/-    1.30       6.5 +/-    1.30  0.060 / 0.090