PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-08:57:50
G08     321.5          10.3              -17.2 +/-    9.06     -47.6 +/-    9.06  0.030 / 0.030
G10     303.1          54.0                5.8 +/-    1.13       6.9 +/-    1.13  0.030 / 0.030
G14     210.6          15.2                3.5 +/-    2.75       8.8 +/-    2.75  0.070 / 0.040
G15     45.6           24.3                3.6 +/-    2.43       7.1 +/-    2.43  0.050 / 0.040
G20     0.6            65.0                4.9 +/-    0.58       5.4 +/-    0.58  0.180 / 0.190
G21     108.6          69.4                6.4 +/-    0.72       6.8 +/-    0.72  0.120 / 0.170
G24     92.6           27.3                4.3 +/-    1.66       7.9 +/-    1.66  0.190 / 0.410
G27     299.0          34.4                4.8 +/-    2.11       7.7 +/-    2.11  0.160 / 0.310
G32     212.5          30.3                6.1 +/-    2.45      10.7 +/-    2.45  0.080 / 0.090