PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/18-18:43:00
G01     315.4          25.2                8.3 +/-    1.03      16.1 +/-    1.03  0.080 / 0.170
G10     92.6           47.2               10.7 +/-    0.68      13.9 +/-    0.68  0.160 / 0.200
G11     293.2          27.0                4.6 +/-    2.08       8.5 +/-    2.08  0.040 / 0.040
G14     327.4          71.0                9.4 +/-    0.65       9.9 +/-    0.65  0.040 / 0.040
G18     291.4          48.5               10.0 +/-    2.82      12.8 +/-    2.82  0.090 / 0.190
G20     112.5          22.6               11.1 +/-    1.28      22.9 +/-    1.28  0.110 / 0.180
G22     305.1          16.5                8.4 +/-    4.54      20.0 +/-    4.54  0.040 / 0.040
G25     87.7           11.7               12.7 +/-    1.80      34.2 +/-    1.80  0.040 / 0.030
G31     177.6          48.5               13.9 +/-    0.66      17.9 +/-    0.66  0.260 / 0.260
G32     20.3           61.8                9.1 +/-    0.82      10.2 +/-    0.82  0.220 / 0.320