PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/05-20:27:40
G02     202.9          33.3               17.9 +/-    1.31      29.4 +/-    1.31  0.220 / 0.490
G06     158.4          68.7               16.2 +/-    1.27      17.3 +/-    1.27  0.150 / 0.490
G12     307.4          15.6               11.9 +/-    2.04      29.1 +/-    2.04  0.070 / 0.090
G17     32.7           51.9               12.4 +/-    0.68      15.3 +/-    0.68  0.080 / 0.090
G19     353.5          66.6               13.0 +/-    0.72      14.0 +/-    0.72  0.040 / 0.050
G24     298.7          37.9               14.5 +/-    1.13      21.9 +/-    1.13  0.040 / 0.060
G28     101.4          31.9               13.9 +/-    0.65      23.4 +/-    0.65  0.060 / 0.110