PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-23:58:00
G01     296.5          38.5               10.8 +/-    0.82      16.1 +/-    0.82  0.040 / 0.110
G03     309.9          12.0                9.1 +/-    3.14      24.4 +/-    3.14  0.070 / 0.110
G10     115.7          33.1               11.2 +/-    0.38      18.5 +/-    0.38  0.070 / 0.130
G11     269.5          27.8                9.5 +/-    1.27      17.4 +/-    1.27  0.070 / 0.120
G14     18.7           60.8                8.8 +/-    0.63       9.9 +/-    0.63  0.030 / 0.030
G22     312.5          33.3                8.8 +/-    1.87      14.4 +/-    1.87  0.030 / 0.030
G25     70.1           18.2                8.2 +/-    0.58      18.9 +/-    0.58  0.070 / 0.090
G31     164.9          73.0               11.5 +/-    0.63      11.9 +/-    0.63  0.070 / 0.090
G32     44.3           47.3                8.1 +/-    0.89      10.6 +/-    0.89  0.030 / 0.050