PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-11:57:50
G02     351.6          76.9                3.5 +/-    0.94       3.5 +/-    0.94  0.060 / 0.110
G05     167.4          32.2                6.1 +/-    0.82      10.2 +/-    0.82  0.080 / 0.100
G06     41.7           37.8                3.2 +/-    0.59       4.9 +/-    0.59  0.090 / 0.150
G12     307.3          75.5                4.3 +/-    1.32       4.4 +/-    1.32  0.090 / 0.170
G17     86.5           10.8                2.9 +/-    1.24       8.0 +/-    1.24  0.040 / 0.030
G19     77.0           24.2                4.6 +/-    0.98       9.2 +/-    0.98  0.040 / 0.040
G24     228.6          21.8                6.7 +/-    1.91      14.0 +/-    1.91  0.080 / 0.120
G25     316.7          29.5                3.5 +/-    2.60       6.3 +/-    2.60  0.080 / 0.120