PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/22-19:43:10
G01     241.4          29.6               12.0 +/-    1.24      21.2 +/-    1.24  0.040 / 0.040
G03     311.9          54.5                9.6 +/-    0.63      11.6 +/-    0.63  0.040 / 0.050
G14     69.4           35.8                9.2 +/-    0.46      14.4 +/-    0.46  0.070 / 0.200
G16     160.0          26.2               14.4 +/-    2.27      27.4 +/-    2.27  0.060 / 0.190
G22     283.9          73.7               10.8 +/-    1.04      11.2 +/-    1.04  0.070 / 0.140
G23     293.9          25.5               12.2 +/-    1.73      23.5 +/-    1.73  0.070 / 0.130
G26     126.8          45.3               14.4 +/-    1.28      19.3 +/-    1.28  0.030 / 0.040
G31     40.3           49.3                8.5 +/-    0.55      10.8 +/-    0.55  0.020 / 0.040
G32     85.3           17.0               10.0 +/-    1.01      23.7 +/-    1.01  0.090 / 0.230