PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-09:42:50
G02     214.2          56.1                7.8 +/-    1.09       9.2 +/-    1.09  0.060 / 0.100
G06     68.4           77.4                4.9 +/-    0.62       5.0 +/-    0.62  0.040 / 0.090
G12     317.5          33.7                2.9 +/-    1.38       4.7 +/-    1.38  0.050 / 0.080
G17     56.5           31.9                4.2 +/-    0.71       7.1 +/-    0.71  0.050 / 0.080
G19     32.2           53.1                3.9 +/-    0.42       4.7 +/-    0.42  0.050 / 0.070
G24     263.4          43.1                4.2 +/-    0.93       5.9 +/-    0.93  0.040 / 0.080
G28     120.1          17.4                6.9 +/-    2.06      16.1 +/-    2.06  0.110 / 0.440