PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-11:13:20
G08     307.3          18.7                3.6 +/-    1.01       8.1 +/-    1.01  0.110 / 0.160
G10     344.0          61.5                3.0 +/-    0.39       3.4 +/-    0.39  0.120 / 0.140
G14     222.1          34.2                6.1 +/-    2.40       9.8 +/-    2.40  0.030 / 0.050
G20     86.1           13.4                3.9 +/-    1.69      10.0 +/-    1.69  0.030 / 0.050
G21     139.7          49.8                5.9 +/-    0.41       7.5 +/-    0.41  0.080 / 0.070
G24     67.1           29.3                4.0 +/-    1.25       7.1 +/-    1.25  0.090 / 0.070
G27     265.7          36.0                7.1 +/-    1.33      11.1 +/-    1.33  0.110 / 0.310
G32     230.2          59.8                5.4 +/-    1.70       6.1 +/-    1.70  0.180 / 0.290