PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-20:43:00
G01     224.4          15.1               12.5 +/-    2.52      31.1 +/-    2.52  0.030 / 0.030
G03     275.8          70.0               11.5 +/-    1.04      12.1 +/-    1.04  0.040 / 0.030
G14     88.9           23.0               11.8 +/-    1.88      24.1 +/-    1.88  0.190 / 0.360
G16     146.9          47.0               15.1 +/-    0.80      19.8 +/-    0.80  0.370 / 0.430
G22     209.6          68.3               12.5 +/-    0.38      13.3 +/-    0.38  0.050 / 0.130
G23     309.6          39.5               10.8 +/-    0.90      15.8 +/-    0.90  0.060 / 0.070
G26     92.9           54.8               12.5 +/-    1.56      14.9 +/-    1.56  0.040 / 0.060
G31     46.1           30.2                9.9 +/-    1.31      17.3 +/-    1.31  0.040 / 0.050