PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-20:27:50
G01     250.8          37.6               13.4 +/-    1.90      20.2 +/-    1.90  0.030 / 0.060
G03     316.7          39.6                9.9 +/-    1.46      14.5 +/-    1.46  0.040 / 0.050
G11     243.7          12.9               12.4 +/-    1.31      32.5 +/-    1.31  0.050 / 0.090
G14     52.8           46.2                9.0 +/-    0.63      11.9 +/-    0.63  0.050 / 0.090
G22     308.1          62.2               11.2 +/-    1.03      12.5 +/-    1.03  0.140 / 0.390
G23     284.3          17.4               13.1 +/-    2.19      30.8 +/-    2.19  0.130 / 0.320
G25     42.3           11.3                7.9 +/-    1.43      21.4 +/-    1.43  0.070 / 0.110
G26     139.3          35.5               15.0 +/-    0.52      23.5 +/-    0.52  0.060 / 0.110
G31     42.9           61.9               10.7 +/-    0.61      12.0 +/-    0.61  0.080 / 0.090
G32     75.2           23.2                9.0 +/-    1.07      18.2 +/-    1.07  0.090 / 0.090