PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/30-07:57:50
G02     209.1          53.1                7.9 +/-    0.79       9.6 +/-    0.79  0.080 / 0.110
G06     95.9           79.0                6.6 +/-    0.49       6.7 +/-    0.49  0.080 / 0.110
G12     315.3          30.5                4.9 +/-    1.06       8.5 +/-    1.06  0.110 / 0.150
G17     49.8           37.5                5.6 +/-    1.13       8.4 +/-    1.13  0.120 / 0.190
G19     30.5           53.5                6.3 +/-    0.91       7.6 +/-    0.91  0.040 / 0.050
G24     279.2          41.5               10.2 +/-    1.41      14.5 +/-    1.41  0.030 / 0.050
G28     112.9          28.1                9.4 +/-    0.78      17.2 +/-    0.78  0.040 / 0.040