PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-04:42:50
G08     270.6          18.5                7.5 +/-    1.46      17.1 +/-    1.46  0.110 / 0.240
G10     61.1           57.5                3.8 +/-    0.53       4.4 +/-    0.53  0.120 / 0.210
G14     263.6          65.6                6.6 +/-    1.16       7.2 +/-    1.16  0.130 / 0.260
G18     312.8          32.0                6.0 +/-    2.91      10.2 +/-    2.91  0.130 / 0.300
G20     94.5           37.4                3.8 +/-    0.83       5.7 +/-    0.83  0.030 / 0.030
G21     155.0          16.8                3.8 +/-    3.31       9.0 +/-    3.31  0.030 / 0.030
G24     40.3           10.6                4.3 +/-    2.09      11.8 +/-    2.09  0.070 / 0.060
G27     233.2          17.1                7.1 +/-    2.68      16.8 +/-    2.68  0.070 / 0.060
G31     177.6          30.1                6.8 +/-    1.65      11.9 +/-    1.65  0.110 / 0.210
G32     327.1          74.9                6.8 +/-    0.96       7.0 +/-    0.96  0.090 / 0.260