PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-01:27:50
G08     272.4          18.0                7.4 +/-    1.58      17.1 +/-    1.58  0.040 / 0.060
G10     62.6           57.1                6.4 +/-    0.55       7.5 +/-    0.55  0.040 / 0.070
G14     263.3          65.0                7.2 +/-    0.66       7.9 +/-    0.66  0.140 / 0.200
G18     312.6          32.2                7.5 +/-    2.83      12.5 +/-    2.83  0.140 / 0.190
G20     95.4           36.6                6.9 +/-    0.77      10.7 +/-    0.77  0.030 / 0.040
G21     155.3          16.6                7.8 +/-    1.55      18.6 +/-    1.55  0.030 / 0.040
G24     40.3           10.7                6.6 +/-    2.11      18.1 +/-    2.11  0.090 / 0.210
G27     232.3          16.6                9.8 +/-    2.18      23.4 +/-    2.18  0.090 / 0.270
G31     177.1          31.2                3.2 +/-    2.27       5.5 +/-    2.27  0.150 / 0.410
G32     336.1          74.6                6.8 +/-    0.38       7.0 +/-    0.38  0.210 / 0.380