PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-07:27:50
G02     203.9          35.8                6.3 +/-    1.92       9.8 +/-    1.92  0.060 / 0.060
G06     160.9          69.7                7.5 +/-    1.05       7.9 +/-    1.05  0.050 / 0.080
G12     308.0          16.0                2.4 +/-    1.89       5.7 +/-    1.89  0.130 / 0.340
G17     39.7           45.7                3.3 +/-    0.51       4.4 +/-    0.51  0.150 / 0.350
G19     359.0          65.3                4.6 +/-    0.52       5.0 +/-    0.52  0.050 / 0.030
G24     291.6          41.9                5.3 +/-    1.63       7.5 +/-    1.63  0.050 / 0.040
G28     102.9          32.0                7.1 +/-    1.09      11.9 +/-    1.09  0.080 / 0.130