PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-12:13:10
G01     321.0          10.9              -17.8 +/-   21.74     -48.8 +/-   21.74  0.040 / 0.060
G08     269.5          16.7                5.9 +/-    1.95      14.1 +/-    1.95  0.040 / 0.050
G10     65.4           57.6                3.2 +/-    0.66       3.7 +/-    0.66  0.070 / 0.380
G11     311.4          16.8                2.8 +/-    2.60       6.5 +/-    2.60  0.070 / 0.380
G14     268.7          65.1                4.0 +/-    0.85       4.4 +/-    0.85  0.180 / 0.180
G18     311.4          32.9                3.9 +/-    2.35       6.4 +/-    2.35  0.300 / 0.330
G21     154.8          12.2                3.6 +/-    4.82       9.7 +/-    4.82  0.030 / 0.040
G27     229.3          13.9                6.1 +/-    2.28      15.7 +/-    2.28  0.030 / 0.040
G31     176.6          34.4                7.5 +/-    1.54      12.0 +/-    1.54  0.050 / 0.120
G32     351.7          72.3                4.0 +/-    0.42       4.2 +/-    0.42  0.050 / 0.140