PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-18:27:50
G01     315.1          25.7                6.5 +/-    1.47      12.6 +/-    1.47  0.150 / 0.190
G10     93.4           46.8               10.2 +/-    0.60      13.4 +/-    0.60  0.110 / 0.140
G11     292.5          27.2                8.5 +/-    1.05      15.8 +/-    1.05  0.110 / 0.170
G14     329.5          70.9                8.3 +/-    0.71       8.7 +/-    0.71  0.120 / 0.140
G18     290.4          48.8                7.0 +/-    0.78       8.9 +/-    0.78  0.040 / 0.030
G20     113.0          22.1                9.9 +/-    1.41      20.8 +/-    1.41  0.050 / 0.030
G22     305.4          17.1                7.7 +/-    1.90      18.3 +/-    1.90  0.040 / 0.050
G25     87.3           12.0                9.7 +/-    1.94      26.0 +/-    1.94  0.040 / 0.040
G31     177.7          48.9               11.6 +/-    1.01      14.9 +/-    1.01  0.120 / 0.150
G32     21.0           61.4                8.6 +/-    0.86       9.7 +/-    0.86  0.070 / 0.160