PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/16-20:27:50
G01     266.9          40.7                7.1 +/-    1.06      10.2 +/-    1.06  0.050 / 0.090
G03     316.2          31.7                6.7 +/-    2.21      11.4 +/-    2.21  0.060 / 0.090
G10     131.2          14.0                9.6 +/-    2.20      24.6 +/-    2.20  0.120 / 0.300
G11     246.5          18.4                8.3 +/-    1.78      19.0 +/-    1.78  0.150 / 0.320
G14     47.0           48.0                6.1 +/-    0.85       7.8 +/-    0.85  0.120 / 0.410
G18     227.4          36.3                6.9 +/-    1.58      10.8 +/-    1.58  0.120 / 0.380
G22     313.5          53.9                5.3 +/-    1.41       6.4 +/-    1.41  0.050 / 0.090
G25     45.1           12.1                5.4 +/-    1.14      14.5 +/-    1.14  0.040 / 0.070
G31     54.0           75.6                6.4 +/-    0.78       6.6 +/-    0.78  0.060 / 0.070
G32     65.9           31.6                5.6 +/-    0.72       9.5 +/-    0.72  0.070 / 0.060