PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/14-14:27:50
G05     45.8           26.8                3.6 +/-    1.15       6.8 +/-    1.15  0.060 / 0.080
G13     84.9           34.9                8.0 +/-    0.70      12.7 +/-    0.70  0.050 / 0.100
G15     131.5          47.4               10.3 +/-    0.68      13.4 +/-    0.68  0.040 / 0.100
G20     242.2          33.3                8.4 +/-    1.20      13.8 +/-    1.20  0.050 / 0.110
G21     306.4          41.8                7.1 +/-    1.31      10.0 +/-    1.31  0.020 / 0.030
G25     203.7          18.1                8.1 +/-    1.76      18.7 +/-    1.76  0.030 / 0.020
G26     296.0          19.9                6.3 +/-    1.86      13.9 +/-    1.86  0.130 / 0.370
G29     137.0          82.8                8.4 +/-    1.01       8.5 +/-    1.01  0.140 / 0.390