PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-20:27:50
G02     56.4           36.1                9.7 +/-    0.76      15.1 +/-    0.76  0.030 / 0.030
G05     62.2           63.4                9.6 +/-    0.46      10.6 +/-    0.46  0.020 / 0.040
G12     182.1          32.0               13.0 +/-    1.41      22.0 +/-    1.41  0.110 / 0.260
G13     129.7          13.6               14.4 +/-    2.30      37.0 +/-    2.30  0.120 / 0.290
G21     269.0          14.9               11.8 +/-    1.21      29.4 +/-    1.21  0.090 / 0.080
G25     239.1          53.5               12.2 +/-    5.29      14.8 +/-    5.29  0.110 / 0.050
G29     325.8          51.0               10.5 +/-    1.21      13.1 +/-    1.21  0.080 / 0.110