PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-16:42:50
G02     213.8          53.7               13.7 +/-    1.44      16.6 +/-    1.44  0.030 / 0.030
G06     65.4           75.3               11.5 +/-    0.72      11.9 +/-    0.72  0.030 / 0.040
G12     318.7          36.9                8.3 +/-    0.92      12.8 +/-    0.92  0.050 / 0.080
G17     55.0           33.7                8.4 +/-    0.60      13.7 +/-    0.60  0.040 / 0.070
G19     30.3           54.2                9.7 +/-    0.63      11.7 +/-    0.63  0.050 / 0.080
G24     268.4          42.7               11.5 +/-    1.18      16.0 +/-    1.18  0.050 / 0.070
G28     119.9          16.6                9.4 +/-    1.97      22.6 +/-    1.97  0.050 / 0.050