PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-17:42:30
G02     200.7          18.7               12.2 +/-    2.11      27.7 +/-    2.11  0.180 / 0.790
G06     169.0          54.3               14.5 +/-    0.64      17.5 +/-    0.64  0.270 / 0.780
G13     227.7          13.6               11.2 +/-    3.68      28.9 +/-    3.68  0.160 / 0.280
G17     19.9           61.0               11.1 +/-    0.71      12.5 +/-    0.71  0.160 / 0.280
G19     310.7          70.5               10.9 +/-    0.53      11.5 +/-    0.53  0.080 / 0.120
G24     310.0          29.9               10.6 +/-    1.27      18.6 +/-    1.27  0.090 / 0.130
G28     86.9           40.3               11.2 +/-    1.51      16.2 +/-    1.51  0.040 / 0.050
G30     157.3          16.0               11.7 +/-    2.15      28.4 +/-    2.15  0.030 / 0.050