PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-17:28:10
G08     271.4          20.8                5.4 +/-    2.23      11.6 +/-    2.23  0.120 / 0.330
G10     49.8           60.1                9.7 +/-    0.36      11.0 +/-    0.36  0.110 / 0.380
G14     254.3          62.9                8.7 +/-    0.48       9.7 +/-    0.48  0.240 / 0.280
G18     314.3          29.5                8.8 +/-    1.57      15.6 +/-    1.57  0.190 / 0.280
G20     88.9           40.7               10.2 +/-    0.67      14.7 +/-    0.67  0.060 / 0.060
G21     152.7          18.2               12.3 +/-    2.73      28.2 +/-    2.73  0.060 / 0.060
G24     40.6           11.1                7.3 +/-    2.96      19.9 +/-    2.96  0.030 / 0.030
G27     239.3          20.8                8.8 +/-    1.98      19.0 +/-    1.98  0.030 / 0.040
G31     182.3          20.6               10.8 +/-    3.12      23.4 +/-    3.12  0.110 / 0.170
G32     307.9          75.9               10.1 +/-    0.71      10.4 +/-    0.71  0.100 / 0.210