PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/19-06:42:50
G01     269.3          40.8                7.7 +/-    2.30      11.1 +/-    2.30  0.050 / 0.050
G03     315.9          29.8                5.9 +/-    1.36      10.4 +/-    1.36  0.060 / 0.050
G10     130.4          15.9                5.7 +/-    1.32      13.9 +/-    1.32  0.040 / 0.080
G11     249.1          19.5                6.7 +/-    1.58      14.9 +/-    1.58  0.060 / 0.070
G14     42.1           51.2                5.7 +/-    1.30       7.0 +/-    1.30  0.070 / 0.060
G18     233.1          38.3                7.4 +/-    1.28      11.0 +/-    1.28  0.050 / 0.050
G22     313.8          53.6                6.9 +/-    1.15       8.3 +/-    1.15  0.140 / 0.300
G25     51.1           16.2                3.0 +/-    3.85       7.1 +/-    3.85  0.140 / 0.230
G31     51.5           70.3                7.6 +/-    0.61       8.1 +/-    0.61  0.170 / 0.180
G32     66.2           30.2                5.2 +/-    1.58       9.1 +/-    1.58  0.110 / 0.220