PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-20:28:10
G10     273.5          43.0               10.0 +/-    1.18      13.8 +/-    1.18  0.040 / 0.030
G13     39.3           13.1                7.9 +/-    2.15      20.4 +/-    2.15  0.070 / 0.040
G15     54.5           45.1                9.6 +/-    1.11      13.0 +/-    1.11  0.300 / 0.270
G16     273.8          10.8                8.5 +/-    4.60      23.3 +/-    4.60  0.150 / 0.410
G20     310.4          62.8                9.4 +/-    0.44      10.4 +/-    0.44  0.040 / 0.060
G21     15.2           74.3               10.5 +/-    0.46      10.9 +/-    0.46  0.040 / 0.060
G24     117.6          17.1               10.5 +/-    2.04      24.9 +/-    2.04  0.150 / 0.310
G27     316.4          22.6                9.7 +/-    2.01      20.0 +/-    2.01  0.100 / 0.370
G29     167.8          26.4               10.4 +/-    2.05      19.6 +/-    2.05  0.140 / 0.050
G32     204.7          14.0               11.4 +/-    2.24      28.9 +/-    2.24  0.090 / 0.060