PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-20:12:30
G02     201.0          24.7               15.4 +/-    0.91      30.4 +/-    0.91  0.080 / 0.120
G06     167.0          59.4               15.2 +/-    1.13      17.4 +/-    1.13  0.090 / 0.110
G13     224.4          10.4               17.7 +/-    2.82      48.8 +/-    2.82  0.030 / 0.040
G17     23.4           58.4               13.9 +/-    0.34      16.0 +/-    0.34  0.030 / 0.050
G19     329.5          70.0               14.1 +/-    0.68      14.9 +/-    0.68  0.230 / 0.430
G24     306.8          32.8               12.4 +/-    1.71      20.5 +/-    1.71  0.220 / 0.490
G28     92.6           37.3               14.6 +/-    0.71      22.2 +/-    0.71  0.060 / 0.120
G30     157.5          10.7               17.2 +/-    4.14      47.3 +/-    4.14  0.040 / 0.110