PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-09:27:50
G08     312.3          17.9                5.2 +/-    2.51      12.0 +/-    2.51  0.040 / 0.050
G10     326.4          59.2                4.6 +/-    0.51       5.3 +/-    0.51  0.040 / 0.050
G14     215.6          27.9                4.9 +/-    2.26       8.9 +/-    2.26  0.030 / 0.030
G15     46.3           12.7                2.4 +/-    2.58       6.2 +/-    2.58  0.030 / 0.030
G20     30.5           61.7                4.0 +/-    1.13       4.5 +/-    1.13  0.050 / 0.070
G21     130.3          57.9                7.5 +/-    0.59       8.7 +/-    0.59  0.090 / 0.070
G24     76.9           29.4                4.9 +/-    1.00       8.6 +/-    1.00  0.160 / 0.200
G27     282.4          37.2                7.9 +/-    1.78      12.1 +/-    1.78  0.140 / 0.300
G32     220.0          43.4                7.1 +/-    1.18       9.7 +/-    1.18  0.060 / 0.080