PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-18:12:30
G02     320.9          79.9                9.0 +/-    0.70       9.1 +/-    0.70  0.040 / 0.100
G05     165.5          31.6               11.8 +/-    1.40      20.1 +/-    1.40  0.040 / 0.100
G06     41.7           39.8                6.4 +/-    0.77       9.4 +/-    0.77  0.020 / 0.040
G12     312.3          74.2                8.4 +/-    0.70       8.7 +/-    0.70  0.030 / 0.030
G17     85.1           11.5               10.0 +/-    1.71      27.0 +/-    1.71  0.080 / 0.160
G19     71.4           31.1                8.4 +/-    0.65      14.4 +/-    0.65  0.080 / 0.140
G24     228.1          23.5               11.7 +/-    2.06      23.7 +/-    2.06  0.040 / 0.040
G25     317.4          28.0                5.8 +/-    1.75      10.7 +/-    1.75  0.030 / 0.040