PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-23:43:00
G10     296.7          51.7                7.9 +/-    1.85       9.8 +/-    1.85  0.080 / 0.070
G15     46.8           32.2                6.0 +/-    1.40      10.0 +/-    1.40  0.060 / 0.070
G20     291.1          43.8                5.6 +/-    0.38       7.7 +/-    0.38  0.040 / 0.030
G21     91.7           75.5                8.5 +/-    0.65       8.7 +/-    0.65  0.040 / 0.030
G24     96.3           26.1                9.6 +/-    2.00      18.3 +/-    2.00  0.130 / 0.120
G27     301.3          33.8                6.5 +/-    2.56      10.6 +/-    2.56  0.120 / 0.100
G32     210.0          33.2               11.6 +/-    1.73      19.1 +/-    1.73  0.090 / 0.090