PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/27-00:58:00
G08     320.0          11.3               -0.5 +/-   30.22      -1.5 +/-   30.22  0.050 / 0.060
G10     315.3          57.2                8.9 +/-    1.33      10.3 +/-    1.33  0.050 / 0.070
G14     213.0          20.0               11.7 +/-    4.47      25.8 +/-    4.47  0.030 / 0.050
G15     45.6           18.9                7.0 +/-    2.77      15.8 +/-    2.77  0.040 / 0.040
G20     14.8           63.9                9.3 +/-    0.55      10.2 +/-    0.55  0.210 / 0.300
G21     119.8          67.5               12.3 +/-    0.36      13.2 +/-    0.36  0.170 / 0.400
G24     87.2           29.6               10.9 +/-    1.44      19.2 +/-    1.44  0.150 / 0.200
G27     289.5          37.3               10.9 +/-    2.20      16.6 +/-    2.20  0.070 / 0.210
G32     215.2          40.8               11.7 +/-    1.70      16.8 +/-    1.70  0.280 / 0.390