PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-18:57:50
G10     263.7          36.5               10.9 +/-    1.38      16.9 +/-    1.38  0.180 / 0.300
G13     43.4           20.4                9.1 +/-    1.27      19.9 +/-    1.27  0.130 / 0.330
G15     66.6           54.4                9.3 +/-    0.40      11.1 +/-    0.40  0.050 / 0.040
G16     282.0          13.2                9.7 +/-    1.49      25.2 +/-    1.49  0.040 / 0.050
G20     291.6          58.8               11.9 +/-    1.12      13.6 +/-    1.12  0.180 / 0.410
G21     357.9          70.1               11.3 +/-    0.47      11.9 +/-    0.47  0.230 / 0.350
G24     120.0          12.7               11.7 +/-    1.21      30.8 +/-    1.21  0.070 / 0.260
G27     320.6          15.0                9.2 +/-    3.32      22.8 +/-    3.32  0.070 / 0.230
G29     167.3          34.7                9.9 +/-    1.28      15.7 +/-    1.28  0.040 / 0.040