PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-08:28:10
G02     213.9          56.6               10.0 +/-    1.09      11.7 +/-    1.09  0.050 / 0.090
G06     71.0           78.2                7.0 +/-    0.68       7.2 +/-    0.68  0.050 / 0.090
G12     317.2          32.9                5.7 +/-    1.11       9.3 +/-    1.11  0.040 / 0.090
G17     56.4           31.9                5.4 +/-    1.04       9.1 +/-    1.04  0.050 / 0.080
G19     32.6           52.9                5.7 +/-    0.43       6.9 +/-    0.43  0.140 / 0.360
G24     263.1          43.2                7.7 +/-    1.03      10.7 +/-    1.03  0.150 / 0.380
G28     119.9          17.7                9.3 +/-    1.47      21.7 +/-    1.47  0.050 / 0.070