PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-15:28:10
G02     213.8          52.8               12.1 +/-    1.23      14.8 +/-    1.23  0.080 / 0.070
G06     65.5           75.1                9.0 +/-    0.90       9.3 +/-    0.90  0.060 / 0.080
G12     318.9          37.6                6.5 +/-    0.76       9.8 +/-    0.76  0.040 / 0.090
G17     55.4           33.1                7.7 +/-    1.03      12.7 +/-    1.03  0.040 / 0.100
G19     29.5           54.6                7.6 +/-    0.40       9.1 +/-    0.40  0.030 / 0.030
G24     268.2          42.8                7.9 +/-    0.91      11.0 +/-    0.91  0.030 / 0.030
G28     119.7          16.9                9.7 +/-    1.04      23.0 +/-    1.04  0.030 / 0.040