PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/30-22:58:00
G01     252.0          35.7               11.2 +/-    1.98      17.5 +/-    1.98  0.030 / 0.030
G03     316.0          42.4                8.5 +/-    1.03      11.9 +/-    1.03  0.030 / 0.030
G11     238.0          13.2                8.4 +/-    2.37      21.9 +/-    2.37  0.060 / 0.090
G14     59.9           40.9                7.5 +/-    1.44      10.8 +/-    1.44  0.060 / 0.090
G22     306.2          64.5                8.7 +/-    0.72       9.5 +/-    0.72  0.060 / 0.310
G23     285.6          18.0               10.7 +/-    1.51      24.7 +/-    1.51  0.060 / 0.320
G25     39.9           10.2                6.2 +/-    2.53      17.3 +/-    2.53  0.030 / 0.030
G26     140.0          36.4               11.0 +/-    0.65      17.0 +/-    0.65  0.020 / 0.030
G31     40.4           62.2                7.7 +/-    0.53       8.6 +/-    0.53  0.070 / 0.080
G32     76.1           24.5                9.4 +/-    1.16      18.6 +/-    1.16  0.080 / 0.080