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               11.8 +/-    1.86      17.8 +/-    1.86  0.040 / 0.040
G03     316.7          39.6               10.1 +/-    0.99      14.8 +/-    0.99  0.030 / 0.040
G11     243.7          12.9               10.0 +/-    1.95      26.2 +/-    1.95  0.070 / 0.090
G14     52.8           46.2                8.7 +/-    1.16      11.5 +/-    1.16  0.080 / 0.110
G22     308.1          62.2                9.5 +/-    0.61      10.6 +/-    0.61  0.040 / 0.090
G23     284.3          17.4               13.2 +/-    1.87      30.9 +/-    1.87  0.050 / 0.070
G25     42.3           11.3                7.2 +/-    1.94      19.6 +/-    1.94  0.210 / 0.290
G26     139.3          35.5               13.0 +/-    1.24      20.4 +/-    1.24  0.140 / 0.380
G31     42.9           61.9                8.3 +/-    0.72       9.3 +/-    0.72  0.070 / 0.090
G32     75.2           23.2                9.5 +/-    1.29      19.3 +/-    1.29  0.080 / 0.080