PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-23:27:50
G08     268.9          19.6                7.1 +/-    2.95      15.7 +/-    2.95  0.120 / 0.310
G10     55.5           59.3                8.8 +/-    1.21      10.1 +/-    1.21  0.130 / 0.390
G11     313.1          15.8               -9.2 +/-    7.64     -22.5 +/-    7.64  0.040 / 0.050
G14     259.2          63.8                8.6 +/-    0.64       9.5 +/-    0.64  0.050 / 0.060
G18     313.6          30.1                9.9 +/-    1.80      17.3 +/-    1.80  0.160 / 0.370
G20     92.1           38.8               10.1 +/-    0.49      14.9 +/-    0.49  0.110 / 0.330
G21     154.1          18.2               12.4 +/-    3.96      28.5 +/-    3.96  0.130 / 0.260
G27     235.4          18.4               11.3 +/-    1.37      25.9 +/-    1.37  0.110 / 0.210
G31     178.8          27.2               11.5 +/-    1.08      21.3 +/-    1.08  0.130 / 0.360
G32     330.7          75.4                9.6 +/-    0.71       9.9 +/-    0.71  0.090 / 0.140