PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-12:42:40
G02     332.9          79.5                3.8 +/-    0.34       3.8 +/-    0.34  0.080 / 0.110
G05     168.2          29.0                4.2 +/-    1.58       7.6 +/-    1.58  0.110 / 0.140
G06     40.9           41.1                2.0 +/-    1.07       2.9 +/-    1.07  0.040 / 0.030
G12     314.3          71.1                4.5 +/-    0.67       4.7 +/-    0.67  0.040 / 0.030
G17     83.4           13.3                3.1 +/-    2.16       7.9 +/-    2.16  0.070 / 0.110
G19     73.6           26.5                1.3 +/-    1.42       2.4 +/-    1.42  0.070 / 0.110
G24     231.6          24.3                5.7 +/-    2.46      11.4 +/-    2.46  0.220 / 0.150
G25     317.2          26.0              -29.9 +/-   23.91     -57.0 +/-   23.91  0.210 / 0.270