PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/23-16:42:50
G03     240.4          70.5               12.1 +/-    0.85      12.8 +/-    0.85  0.120 / 0.230
G09     300.2          13.7                9.7 +/-    2.28      24.9 +/-    2.28  0.110 / 0.210
G14     94.9           19.8               11.6 +/-    1.65      25.7 +/-    1.65  0.060 / 0.060
G16     133.9          55.4               13.7 +/-    0.62      16.2 +/-    0.62  0.040 / 0.050
G22     193.9          58.5               12.1 +/-    0.53      13.9 +/-    0.53  0.130 / 0.270
G23     317.6          47.8               10.0 +/-    1.11      13.0 +/-    1.11  0.120 / 0.250
G26     75.4           52.7               11.8 +/-    1.04      14.4 +/-    1.04  0.030 / 0.050
G31     50.2           22.1                7.6 +/-    3.40      16.0 +/-    3.40  0.040 / 0.040