PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-20:57:30
G08     302.5          22.1                8.4 +/-    1.28      17.6 +/-    1.28  0.060 / 0.090
G10     345.3          61.7                9.7 +/-    0.61      10.9 +/-    0.61  0.060 / 0.100
G14     221.6          36.5               14.3 +/-    0.96      22.1 +/-    0.96  0.030 / 0.060
G20     48.8           57.7               10.0 +/-    0.44      11.6 +/-    0.44  0.040 / 0.070
G21     139.8          50.2               11.4 +/-    0.80      14.4 +/-    0.80  0.070 / 0.110
G24     63.8           27.3                8.2 +/-    0.66      15.2 +/-    0.66  0.060 / 0.130
G27     268.7          35.8               11.4 +/-    1.65      17.9 +/-    1.65  0.100 / 0.210
G32     229.5          59.0               11.7 +/-    0.73      13.4 +/-    0.73  0.090 / 0.200