PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-18:27:50
G01     308.5          34.0               22.8 +/-    1.75      36.9 +/-    1.75  0.140 / 0.170
G10     103.0          40.0                9.1 +/-    0.62      13.2 +/-    0.62  0.110 / 0.150
G11     289.5          25.2                8.2 +/-    1.16      16.0 +/-    1.16  0.040 / 0.040
G14     336.7          69.2                8.0 +/-    0.77       8.4 +/-    0.77  0.030 / 0.040
G20     119.4          13.2               10.7 +/-    1.60      27.9 +/-    1.60  0.040 / 0.070
G22     308.8          22.3                6.9 +/-    1.57      14.4 +/-    1.57  0.040 / 0.080
G25     85.4           15.0               10.1 +/-    3.26      25.1 +/-    3.26  0.160 / 0.190
G31     169.6          60.7                9.9 +/-    0.54      11.1 +/-    0.54  0.090 / 0.190
G32     34.6           53.4                8.0 +/-    1.58       9.7 +/-    1.58  0.030 / 0.040