PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-04:12:40
G08     288.2          22.3                9.3 +/-    1.04      19.3 +/-    1.04  0.080 / 0.130
G10     26.2           62.3                6.0 +/-    1.43       6.7 +/-    1.43  0.080 / 0.100
G14     236.2          52.5                9.2 +/-    2.62      11.3 +/-    2.62  0.030 / 0.020
G18     317.7          16.8                7.6 +/-    2.18      18.0 +/-    2.18  0.030 / 0.020
G20     74.8           48.4                7.8 +/-    1.66      10.0 +/-    1.66  0.070 / 0.120
G21     150.1          33.7               10.4 +/-    1.47      16.9 +/-    1.47  0.060 / 0.120
G24     50.3           22.0                6.2 +/-    4.54      12.9 +/-    4.54  0.100 / 0.080
G27     248.0          28.2                9.6 +/-    2.22      17.4 +/-    2.22  0.070 / 0.080
G31     181.6          13.3                6.3 +/-    5.50      16.3 +/-    5.50  0.230 / 0.290
G32     259.6          71.1                7.3 +/-    0.73       7.7 +/-    0.73  0.150 / 0.290