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               12.8 +/-    0.71      15.5 +/-    0.71  0.060 / 0.070
G06     65.4           75.3               11.7 +/-    0.28      12.0 +/-    0.28  0.110 / 0.070
G12     318.7          36.9                9.5 +/-    1.12      14.6 +/-    1.12  0.080 / 0.070
G17     55.0           33.7                9.4 +/-    1.06      15.3 +/-    1.06  0.060 / 0.060
G19     30.3           54.2               10.1 +/-    1.51      12.2 +/-    1.51  0.030 / 0.020
G24     268.4          42.7               12.8 +/-    1.58      17.8 +/-    1.58  0.040 / 0.020
G28     119.9          16.6               11.0 +/-    1.00      26.3 +/-    1.00  0.040 / 0.040