PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-20:28:10
G10     285.1          48.3                9.0 +/-    1.91      11.6 +/-    1.91  0.080 / 0.080
G15     48.8           36.9                8.2 +/-    0.74      12.5 +/-    0.74  0.040 / 0.040
G20     331.8          65.0                9.8 +/-    0.47      10.7 +/-    0.47  0.030 / 0.050
G21     52.2           77.3               10.3 +/-    0.93      10.6 +/-    0.93  0.030 / 0.060
G24     109.3          22.2                9.9 +/-    0.64      20.7 +/-    0.64  0.140 / 0.220
G27     310.1          29.0                8.8 +/-    0.69      15.8 +/-    0.69  0.200 / 0.210
G29     168.2          17.3               11.4 +/-    1.30      26.9 +/-    1.30  0.070 / 0.110
G32     206.7          22.8               12.8 +/-    1.59      26.2 +/-    1.59  0.080 / 0.100