PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/01-23:12:40
G02     59.2           33.3                7.6 +/-    1.92      12.5 +/-    1.92  0.050 / 0.100
G05     57.7           60.6                9.2 +/-    0.55      10.4 +/-    0.55  0.070 / 0.100
G12     183.0          30.7               12.3 +/-    1.22      21.2 +/-    1.22  0.030 / 0.030
G13     128.0          15.2               11.6 +/-    2.06      28.7 +/-    2.06  0.030 / 0.030
G15     165.0          11.5                8.2 +/-   16.58      22.2 +/-   16.58  0.300 / 0.300
G21     271.1          16.6               13.3 +/-    2.11      31.7 +/-    2.11  0.260 / 0.400
G25     236.6          51.9               11.2 +/-    2.34      13.8 +/-    2.34  0.030 / 0.040
G29     327.5          53.5                8.7 +/-    1.58      10.6 +/-    1.58  0.040 / 0.030