PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-12:42:40
G02     341.7          78.5                2.9 +/-    0.60       2.9 +/-    0.60  0.050 / 0.090
G05     167.5          30.8                5.7 +/-    1.22       9.8 +/-    1.22  0.060 / 0.100
G06     41.3           39.4                1.7 +/-    0.68       2.6 +/-    0.68  0.120 / 0.230
G12     311.5          73.0                2.6 +/-    0.55       2.7 +/-    0.55  0.130 / 0.300
G17     84.9           12.2                4.8 +/-    1.73      12.9 +/-    1.73  0.030 / 0.040
G19     75.3           25.4                4.3 +/-    0.50       8.4 +/-    0.50  0.030 / 0.040
G24     230.1          23.1                5.4 +/-    2.14      11.0 +/-    2.14  0.070 / 0.120
G25     317.0          27.7                0.4 +/-    1.80       0.8 +/-    1.80  0.080 / 0.140