PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-17:12:50
G02     85.8           11.3               11.6 +/-    1.83      31.4 +/-    1.83  0.050 / 0.080
G05     44.9           32.7                9.7 +/-    0.86      16.0 +/-    0.86  0.050 / 0.080
G13     98.1           34.5               12.7 +/-    1.27      20.4 +/-    1.27  0.040 / 0.040
G15     141.9          40.0               13.3 +/-    0.59      19.3 +/-    0.59  0.040 / 0.040
G18     232.8          30.1               11.9 +/-    1.60      20.8 +/-    1.60  0.120 / 0.340
G20     351.9          82.6               10.4 +/-    0.50      10.4 +/-    0.50  0.110 / 0.260
G21     300.3          39.5               11.9 +/-    1.26      17.4 +/-    1.26  0.070 / 0.100
G25     206.5          23.0               12.4 +/-    1.51      25.4 +/-    1.51  0.080 / 0.100
G26     307.5          16.5               12.7 +/-    2.91      30.4 +/-    2.91  0.040 / 0.110
G29     117.2          82.4               13.1 +/-    0.78      13.2 +/-    0.78  0.040 / 0.120