PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-03:27:50
G08     265.2          15.8                8.1 +/-    4.88      19.8 +/-    4.88  0.250 / 0.690
G10     72.9           54.3                8.8 +/-    0.85      10.6 +/-    0.85  0.290 / 0.730
G11     307.7          20.1                5.9 +/-    1.47      13.0 +/-    1.47  0.040 / 0.050
G14     279.4          68.8                9.1 +/-    0.58       9.7 +/-    0.58  0.040 / 0.040
G18     308.6          37.4                6.9 +/-    1.32      10.5 +/-    1.32  0.140 / 0.230
G20     101.0          33.0               10.2 +/-    1.65      16.9 +/-    1.65  0.220 / 0.280
G21     156.1          10.6                9.2 +/-    5.32      25.2 +/-    5.32  0.070 / 0.090
G27     228.0          12.5               10.6 +/-    3.16      28.0 +/-    3.16  0.050 / 0.090
G31     175.8          37.6               12.1 +/-    1.09      18.3 +/-    1.09  0.200 / 0.380
G32     352.6          71.6                8.5 +/-    0.41       8.9 +/-    0.41  0.150 / 0.300