PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-00:57:40
G02     11.2           71.0                9.8 +/-    0.47      10.4 +/-    0.47  0.030 / 0.030
G05     157.9          43.8               12.6 +/-    1.13      17.2 +/-    1.13  0.030 / 0.030
G06     44.7           31.4                8.6 +/-    1.45      14.6 +/-    1.45  0.040 / 0.060
G12     280.7          79.0               10.2 +/-    0.72      10.4 +/-    0.72  0.030 / 0.070
G19     82.9           22.8               10.6 +/-    3.08      21.9 +/-    3.08  0.100 / 0.210
G24     221.4          16.2               12.4 +/-    2.37      30.0 +/-    2.37  0.270 / 0.210
G25     314.8          36.6                9.2 +/-    0.86      14.1 +/-    0.86  0.060 / 0.080
G29     292.8          13.8                9.0 +/-    2.34      23.1 +/-    2.34  0.060 / 0.090