PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-22:27:50
G08     261.0          16.2               11.5 +/-    2.62      27.7 +/-    2.62  0.340 / 0.460
G10     70.2           55.9               10.2 +/-    0.96      12.0 +/-    0.96  0.250 / 0.300
G11     307.3          20.8               11.0 +/-    3.17      23.8 +/-    3.17  0.170 / 0.420
G14     278.4          68.6               12.3 +/-    0.47      13.1 +/-    0.47  0.180 / 0.380
G18     308.7          37.2               13.1 +/-    2.82      19.9 +/-    2.82  0.040 / 0.050
G20     100.0          33.3               11.9 +/-    1.15      19.5 +/-    1.15  0.050 / 0.050
G21     155.2          10.1               13.4 +/-    1.87      37.4 +/-    1.87  0.120 / 0.290
G27     229.6          13.1               13.1 +/-    7.24      34.2 +/-    7.24  0.130 / 0.340
G31     177.8          35.0               14.1 +/-    1.42      22.3 +/-    1.42  0.060 / 0.090
G32     355.5          71.3               11.4 +/-    0.67      12.0 +/-    0.67  0.050 / 0.110