PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-22:27:30
G02     201.8          31.1               24.7 +/-    1.14      42.3 +/-    1.14  0.180 / 0.290
G06     163.6          65.0               21.5 +/-    0.91      23.4 +/-    0.91  0.170 / 0.310
G12     305.3          12.3               13.0 +/-    1.45      34.5 +/-    1.45  0.030 / 0.030
G17     27.7           55.4               16.0 +/-    0.61      19.0 +/-    0.61  0.040 / 0.040
G19     347.9          67.9               16.3 +/-    0.84      17.4 +/-    0.84  0.050 / 0.120
G24     302.3          35.9               16.4 +/-    0.97      25.6 +/-    0.97  0.060 / 0.110
G28     98.5           33.7               17.0 +/-    0.57      27.7 +/-    0.57  0.060 / 0.100