PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-17:28:00
G10     255.5          32.3               12.5 +/-    1.48      20.9 +/-    1.48  0.160 / 0.820
G13     48.5           25.4                9.8 +/-    1.43      19.0 +/-    1.43  0.150 / 0.640
G15     73.9           54.9               10.8 +/-    0.37      12.9 +/-    0.37  0.050 / 0.060
G16     289.6          15.5                8.0 +/-    2.47      19.8 +/-    2.47  0.050 / 0.050
G20     280.1          55.8               12.1 +/-    0.47      14.3 +/-    0.47  0.040 / 0.060
G21     341.1          63.5                9.9 +/-    0.60      10.9 +/-    0.60  0.030 / 0.070
G26     263.2          13.3               10.4 +/-    1.46      27.1 +/-    1.46  0.080 / 0.120
G29     165.3          45.1               12.7 +/-    1.11      17.1 +/-    1.11  0.090 / 0.140