PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-07:13:10
G02     202.1          29.3                6.2 +/-    1.14      11.1 +/-    1.14  0.050 / 0.080
G06     167.6          62.9                8.2 +/-    0.54       9.1 +/-    0.54  0.050 / 0.080
G12     304.5          11.3               -2.8 +/-   15.78      -7.5 +/-   15.78  0.130 / 0.300
G17     34.2           50.5                3.0 +/-    0.63       3.8 +/-    0.63  0.120 / 0.330
G19     343.3          68.4                5.2 +/-    0.53       5.5 +/-    0.53  0.040 / 0.040
G24     298.9          39.0                5.2 +/-    1.01       7.7 +/-    1.01  0.030 / 0.040
G28     96.5           36.0                6.2 +/-    0.46       9.6 +/-    0.46  0.050 / 0.130