PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-02:28:10
G10     292.4          50.8               10.6 +/-    0.76      13.2 +/-    0.76  0.040 / 0.040
G15     46.8           31.0                7.3 +/-    0.51      12.4 +/-    0.51  0.040 / 0.040
G20     341.5          65.2                7.9 +/-    0.69       8.6 +/-    0.69  0.050 / 0.090
G21     79.0           76.3               11.0 +/-    0.70      11.3 +/-    0.70  0.050 / 0.110
G24     102.6          24.8                7.9 +/-    0.69      15.5 +/-    0.69  0.050 / 0.050
G27     305.8          31.7                7.0 +/-    1.74      11.9 +/-    1.74  0.050 / 0.040
G29     167.2          10.4               10.1 +/-    0.91      27.9 +/-    0.91  0.040 / 0.080
G32     209.0          25.8               12.5 +/-    1.04      24.0 +/-    1.04  0.040 / 0.080