PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-18:27:40
G08     319.8          11.9               10.9 +/-    2.13      29.1 +/-    2.13  0.050 / 0.070
G10     311.8          56.5               13.3 +/-    1.11      15.6 +/-    1.11  0.060 / 0.080
G14     212.6          14.9               19.8 +/-    2.33      49.4 +/-    2.33  0.210 / 0.660
G15     45.5           19.5               10.6 +/-    0.77      23.5 +/-    0.77  0.240 / 0.430
G20     15.9           63.6               13.8 +/-    0.38      15.2 +/-    0.38  0.070 / 0.120
G21     115.6          68.9               15.5 +/-    0.73      16.5 +/-    0.73  0.060 / 0.130
G24     91.0           29.3               13.9 +/-    0.62      24.7 +/-    0.62  0.040 / 0.040
G27     291.9          37.1               15.1 +/-    0.91      23.1 +/-    0.91  0.030 / 0.040
G32     213.4          40.7               17.8 +/-    1.05      25.6 +/-    1.05  0.140 / 0.290