PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-19:58:00
G01     317.7          20.7                8.6 +/-    1.38      18.7 +/-    1.38  0.150 / 0.360
G08     254.4          11.3               11.3 +/-    4.48      30.6 +/-    4.48  0.130 / 0.310
G10     84.6           51.8                8.8 +/-    0.75      10.8 +/-    0.75  0.150 / 0.310
G11     300.4          24.4               10.0 +/-    1.84      19.8 +/-    1.84  0.100 / 0.270
G14     309.2          71.1                8.2 +/-    1.09       8.6 +/-    1.09  0.040 / 0.070
G18     105.4          25.2               11.8 +/-    0.54      22.9 +/-    0.54  0.050 / 0.060
G22     302.1          12.4                9.4 +/-    2.31      24.9 +/-    2.31  0.060 / 0.050
G31     177.1          44.3               13.0 +/-    1.09      17.8 +/-    1.09  0.060 / 0.040
G32     11.7           65.5                7.2 +/-    0.72       7.8 +/-    0.72  0.040 / 0.030