PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-20:27:50
G10     250.4          28.2               13.8 +/-    1.30      25.2 +/-    1.30  0.040 / 0.060
G13     53.1           28.8                8.9 +/-    1.56      16.1 +/-    1.56  0.040 / 0.050
G15     88.1           58.1               12.1 +/-    0.45      14.0 +/-    0.45  0.130 / 0.540
G16     295.6          15.8               11.0 +/-    3.47      26.7 +/-    3.47  0.120 / 0.470
G20     270.5          51.3               13.0 +/-    2.93      16.1 +/-    2.93  0.030 / 0.040
G21     333.1          59.3               12.0 +/-    1.01      13.7 +/-    1.01  0.040 / 0.050
G26     268.3          15.6               11.8 +/-    2.33      28.8 +/-    2.33  0.080 / 0.150
G29     163.5          50.7               12.8 +/-    0.58      16.0 +/-    0.58  0.080 / 0.170