PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-19:28:10
G10     302.3          54.1               14.4 +/-    1.49      17.3 +/-    1.49  0.040 / 0.040
G15     45.7           25.4               11.9 +/-    1.78      23.0 +/-    1.78  0.040 / 0.040
G20     1.6            64.9               14.7 +/-    0.61      16.0 +/-    0.61  0.060 / 0.090
G21     100.9          73.3               16.4 +/-    1.13      17.0 +/-    1.13  0.080 / 0.080
G24     97.5           27.5               15.3 +/-    1.32      28.3 +/-    1.32  0.070 / 0.050
G27     298.7          35.2               15.4 +/-    2.11      24.3 +/-    2.11  0.050 / 0.040
G32     210.7          34.7               18.7 +/-    1.48      29.8 +/-    1.48  0.180 / 0.170