PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/19-09:43:00
G02     12.9           69.3                2.8 +/-    0.90       2.9 +/-    0.90  0.210 / 0.400
G05     159.6          44.8                6.3 +/-    1.15       8.5 +/-    1.15  0.110 / 0.390
G06     44.9           31.2                1.3 +/-    0.58       2.2 +/-    0.58  0.040 / 0.070
G12     270.1          79.4                2.7 +/-    0.84       2.8 +/-    0.84  0.040 / 0.050
G19     84.7           21.7                3.4 +/-    1.61       7.1 +/-    1.61  0.050 / 0.080
G24     215.8          13.0                4.9 +/-    5.71      12.6 +/-    5.71  0.080 / 0.090
G25     310.9          45.8                2.9 +/-    1.14       3.8 +/-    1.14  0.030 / 0.040
G29     295.6          17.6               -0.2 +/-    1.30      -0.5 +/-    1.30  0.020 / 0.030