PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-10:12:30
G02     18.7           65.9                2.7 +/-    0.68       3.0 +/-    0.68  0.190 / 0.400
G05     157.0          49.0                6.7 +/-    0.95       8.5 +/-    0.95  0.200 / 0.410
G06     46.7           27.4                2.1 +/-    1.23       3.9 +/-    1.23  0.030 / 0.040
G12     242.2          79.3                3.9 +/-    0.41       4.0 +/-    0.41  0.030 / 0.040
G19     88.4           19.3               -6.2 +/-    1.51     -14.0 +/-    1.51  0.040 / 0.050
G24     212.9          10.1                5.2 +/-    1.94      14.5 +/-    1.94  0.030 / 0.050
G29     298.7          20.2                5.2 +/-    3.29      11.3 +/-    3.29  0.080 / 0.080