PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/08-12:57:40
G02     51.4           38.6                2.5 +/-    0.67       3.7 +/-    0.67  0.060 / 0.080
G05     90.0           70.9                4.4 +/-    0.69       4.6 +/-    0.69  0.040 / 0.070
G12     183.4          42.2                4.4 +/-    2.29       6.2 +/-    2.29  0.030 / 0.030
G21     263.2          10.4               -4.7 +/-   13.68     -13.1 +/-   13.68  0.020 / 0.040
G25     256.6          57.5                7.0 +/-    1.29       8.1 +/-    1.29  0.040 / 0.070
G29     320.8          43.7                5.3 +/-    0.85       7.2 +/-    0.85  0.040 / 0.070