PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-07:58:00
G08     290.0          23.2                5.3 +/-    1.06      10.9 +/-    1.06  0.050 / 0.100
G10     17.3           62.7                3.8 +/-    0.79       4.2 +/-    0.79  0.040 / 0.100
G14     232.5          50.0                6.9 +/-    1.03       8.7 +/-    1.03  0.080 / 0.100
G18     317.7          14.2                3.2 +/-    1.24       8.1 +/-    1.24  0.100 / 0.130
G20     70.1           50.3                4.8 +/-    0.46       6.0 +/-    0.46  0.030 / 0.030
G21     148.0          35.9                5.4 +/-    1.24       8.5 +/-    1.24  0.040 / 0.030
G24     52.6           23.3                3.3 +/-    0.49       6.6 +/-    0.49  0.090 / 0.130
G27     252.5          30.3                7.0 +/-    0.98      12.2 +/-    0.98  0.110 / 0.140
G32     248.1          66.0                5.8 +/-    0.68       6.3 +/-    0.68  0.040 / 0.080