PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-21:43:00
G01     320.7          12.9              -19.6 +/-   16.89     -51.3 +/-   16.89  0.040 / 0.050
G08     260.9          16.2                9.9 +/-    1.11      24.0 +/-    1.11  0.030 / 0.040
G10     70.3           55.8                9.7 +/-    0.45      11.4 +/-    0.45  0.160 / 0.340
G11     307.3          20.8                6.9 +/-    2.43      14.9 +/-    2.43  0.120 / 0.330
G14     278.8          68.8                8.3 +/-    0.59       8.9 +/-    0.59  0.120 / 0.250
G18     308.6          37.5                8.0 +/-    2.08      12.1 +/-    2.08  0.140 / 0.370
G20     100.0          33.3               10.5 +/-    1.16      17.3 +/-    1.16  0.090 / 0.200
G27     229.8          13.1               11.0 +/-    2.00      28.7 +/-    2.00  0.220 / 0.430
G31     178.1          34.6               10.0 +/-    1.57      16.1 +/-    1.57  0.230 / 0.430
G32     354.8          71.4                8.2 +/-    0.47       8.6 +/-    0.47  0.060 / 0.110