PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-20:57:50
G08     315.2          16.1               12.1 +/-    2.25      29.2 +/-    2.25  0.060 / 0.080
G10     316.9          57.2               13.1 +/-    0.75      15.2 +/-    0.75  0.060 / 0.100
G14     214.0          22.5               18.3 +/-    0.68      37.9 +/-    0.68  0.040 / 0.050
G15     45.9           21.5                6.9 +/-    1.02      14.7 +/-    1.02  0.040 / 0.050
G20     20.3           63.3               10.2 +/-    0.42      11.3 +/-    0.42  0.090 / 0.250
G21     123.8          64.4               12.9 +/-    0.72      14.1 +/-    0.72  0.120 / 0.300
G24     80.7           28.7                9.2 +/-    0.79      16.5 +/-    0.79  0.200 / 0.360
G27     287.7          36.9               12.4 +/-    1.04      19.1 +/-    1.04  0.140 / 0.320
G32     216.6          44.6               15.6 +/-    1.13      21.2 +/-    1.13  0.060 / 0.130