PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-03:27:40
G08     318.2          13.2                6.6 +/-    1.78      17.0 +/-    1.78  0.050 / 0.030
G10     317.2          57.6                8.0 +/-    0.91       9.3 +/-    0.91  0.050 / 0.030
G14     213.4          21.9               13.9 +/-    2.41      29.2 +/-    2.41  0.030 / 0.010
G15     45.7           17.3                7.4 +/-    2.91      17.4 +/-    2.91  0.030 / 0.010
G20     18.2           63.5                9.8 +/-    0.92      10.8 +/-    0.92  0.040 / 0.040
G21     122.2          65.9                9.9 +/-    0.90      10.8 +/-    0.90  0.040 / 0.050
G24     85.1           29.6                9.2 +/-    1.14      16.2 +/-    1.14  0.110 / 0.210
G27     288.3          37.3               12.2 +/-    0.70      18.6 +/-    0.70  0.230 / 0.250
G32     216.1          40.8               13.4 +/-    1.70      19.2 +/-    1.70  0.110 / 0.140