PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-11:57:20
G08     307.3          18.9                3.9 +/-    1.02       8.8 +/-    1.02  0.080 / 0.090
G10     343.0          61.4                3.5 +/-    0.35       4.0 +/-    0.35  0.070 / 0.080
G14     221.8          34.1                5.5 +/-    2.94       8.9 +/-    2.94  0.130 / 0.120
G21     139.3          49.9                7.8 +/-    0.41       9.8 +/-    0.41  0.150 / 0.160
G24     67.7           29.5                5.3 +/-    1.20       9.5 +/-    1.20  0.040 / 0.040
G27     266.2          36.1                7.3 +/-    1.90      11.4 +/-    1.90  0.030 / 0.060
G32     229.6          59.2                5.8 +/-    1.72       6.6 +/-    1.72  0.070 / 0.100