PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-03:13:00
G10     302.8          54.1                8.8 +/-    1.31      10.6 +/-    1.31  0.040 / 0.050
G14     210.5          13.9                9.4 +/-    4.99      23.9 +/-    4.99  0.040 / 0.040
G15     45.7           24.8                5.5 +/-    0.78      10.9 +/-    0.78  0.070 / 0.080
G20     358.4          65.0                8.8 +/-    0.81       9.7 +/-    0.81  0.060 / 0.080
G21     103.5          72.5                8.5 +/-    0.42       8.8 +/-    0.42  0.050 / 0.040
G24     95.0           27.5                8.7 +/-    0.63      16.1 +/-    0.63  0.040 / 0.050
G27     298.7          34.9                9.1 +/-    1.52      14.4 +/-    1.52  0.090 / 0.430
G32     211.7          32.2                9.0 +/-    1.52      15.0 +/-    1.52  0.190 / 0.520