PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-23:42:40
G10     267.9          39.9               11.9 +/-    1.38      17.3 +/-    1.38  0.120 / 0.130
G13     41.3           16.9                8.2 +/-    3.11      19.4 +/-    3.11  0.140 / 0.150
G15     58.4           48.2                9.2 +/-    0.89      11.9 +/-    0.89  0.050 / 0.040
G16     279.2          12.3                8.4 +/-    1.77      22.2 +/-    1.77  0.040 / 0.040
G20     297.9          60.0                9.8 +/-    0.92      11.2 +/-    0.92  0.210 / 0.280
G21     2.3            71.5               10.5 +/-    1.03      11.0 +/-    1.03  0.110 / 0.210
G24     121.0          14.4               10.9 +/-    1.89      27.6 +/-    1.89  0.040 / 0.040
G27     318.9          18.6                7.9 +/-    1.64      18.0 +/-    1.64  0.030 / 0.050
G29     166.9          30.4               12.1 +/-    1.93      21.0 +/-    1.93  0.170 / 0.510