PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-17:42:30
G10     248.4          26.7               12.7 +/-    1.03      23.9 +/-    1.03  0.040 / 0.070
G13     55.3           30.0                9.9 +/-    0.73      17.3 +/-    0.73  0.050 / 0.060
G15     89.8           57.4               11.0 +/-    0.70      12.8 +/-    0.70  0.040 / 0.050
G16     297.6          16.0                8.0 +/-    3.09      19.5 +/-    3.09  0.030 / 0.050
G20     268.2          50.7               10.8 +/-    1.06      13.5 +/-    1.06  0.060 / 0.140
G21     330.7          57.8                9.5 +/-    0.76      11.0 +/-    0.76  0.060 / 0.170
G26     270.5          16.4               10.1 +/-    2.23      24.3 +/-    2.23  0.150 / 0.690
G29     162.9          54.0               14.1 +/-    1.00      17.0 +/-    1.00  0.160 / 0.820