PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-16:28:00
G03     212.8          60.6               12.5 +/-    1.03      14.1 +/-    1.03  0.090 / 0.520
G07     253.5          11.9                9.4 +/-    2.31      25.0 +/-    2.31  0.090 / 0.570
G09     307.8          23.8                8.6 +/-    1.72      17.3 +/-    1.72  0.040 / 0.050
G14     105.5          11.4                9.4 +/-    2.74      25.5 +/-    2.74  0.040 / 0.070
G16     105.7          63.7               10.4 +/-    0.51      11.4 +/-    0.51  0.040 / 0.040
G22     186.5          43.6               12.2 +/-    1.77      16.7 +/-    1.77  0.050 / 0.050
G23     330.0          59.1                9.8 +/-    0.90      11.2 +/-    0.90  0.040 / 0.070
G26     56.8           45.3                8.4 +/-    0.47      11.3 +/-    0.47  0.030 / 0.060
G31     57.3           11.9                7.1 +/-    2.27      18.9 +/-    2.27  0.050 / 0.080