PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-18:28:10
G01     308.1          34.3               22.5 +/-    1.55      36.2 +/-    1.55  0.080 / 0.140
G10     103.5          39.7                9.8 +/-    0.72      14.3 +/-    0.72  0.080 / 0.160
G11     289.0          25.3               10.3 +/-    1.00      20.1 +/-    1.00  0.060 / 0.130
G14     337.9          69.0                8.6 +/-    0.60       9.2 +/-    0.60  0.080 / 0.130
G20     119.7          12.9               11.1 +/-    4.37      29.1 +/-    4.37  0.080 / 0.120
G22     309.0          22.7                5.8 +/-    1.25      11.9 +/-    1.25  0.070 / 0.110
G25     84.9           15.2               10.0 +/-    0.74      24.7 +/-    0.74  0.040 / 0.050
G31     169.3          61.2               10.6 +/-    0.99      11.9 +/-    0.99  0.040 / 0.040
G32     35.0           53.1                7.9 +/-    0.48       9.6 +/-    0.48  0.030 / 0.050