PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-18:57:50
G10     287.2          49.1               11.4 +/-    0.99      14.5 +/-    0.99  0.080 / 0.110
G15     47.9           34.4                9.6 +/-    0.37      15.4 +/-    0.37  0.080 / 0.090
G20     336.8          65.3               10.9 +/-    0.81      11.8 +/-    0.81  0.040 / 0.040
G21     60.0           77.2               12.5 +/-    0.81      12.8 +/-    0.81  0.040 / 0.050
G24     108.2          22.9               14.4 +/-    1.43      29.4 +/-    1.43  0.100 / 0.240
G27     308.9          30.0               12.7 +/-    2.11      22.3 +/-    2.11  0.100 / 0.250
G29     168.3          16.1               10.9 +/-    2.11      26.4 +/-    2.11  0.110 / 0.170
G32     206.9          24.7                9.7 +/-    2.23      19.2 +/-    2.23  0.140 / 0.170