PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-06:58:10
G10     264.7          37.7                8.0 +/-    1.22      12.1 +/-    1.22  0.070 / 0.100
G13     42.8           19.4                4.4 +/-    2.66       9.8 +/-    2.66  0.060 / 0.060
G15     60.8           49.4                5.2 +/-    1.03       6.6 +/-    1.03  0.040 / 0.030
G16     285.8          12.4                4.7 +/-    1.38      12.5 +/-    1.38  0.040 / 0.030
G20     293.7          59.3                4.7 +/-    0.92       5.4 +/-    0.92  0.120 / 0.220
G21     4.2            71.2                5.1 +/-    0.31       5.4 +/-    0.31  0.140 / 0.240
G24     121.3          13.0                7.1 +/-    1.71      18.5 +/-    1.71  0.200 / 0.480
G27     320.4          15.4                3.3 +/-    2.06       8.2 +/-    2.06  0.250 / 0.390
G29     164.8          29.3                6.9 +/-    1.55      12.3 +/-    1.55  0.130 / 0.270