PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-22:27:40
G01     225.4          18.5                9.2 +/-    1.71      21.1 +/-    1.71  0.030 / 0.030
G03     295.8          65.2                8.8 +/-    0.73       9.5 +/-    0.73  0.030 / 0.040
G14     81.2           30.2               10.0 +/-    1.06      17.4 +/-    1.06  0.090 / 0.150
G16     146.0          42.8               10.6 +/-    0.88      14.8 +/-    0.88  0.110 / 0.130
G22     228.7          72.3                9.9 +/-    0.50      10.4 +/-    0.50  0.060 / 0.030
G23     305.4          35.5                7.6 +/-    1.64      12.0 +/-    1.64  0.060 / 0.030
G26     102.0          53.5                9.5 +/-    1.08      11.5 +/-    1.08  0.050 / 0.070
G31     44.7           34.2                6.8 +/-    1.38      10.9 +/-    1.38  0.050 / 0.090