PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/31-05:28:10
G08     304.8          20.7                4.7 +/-    3.01      10.2 +/-    3.01  0.070 / 0.110
G10     347.7          61.9                2.6 +/-    0.56       2.9 +/-    0.56  0.070 / 0.110
G14     221.4          37.1                8.2 +/-    1.76      12.6 +/-    1.76  0.050 / 0.070
G20     49.2           57.5                4.7 +/-    0.67       5.4 +/-    0.67  0.040 / 0.060
G21     140.0          50.5               -3.7 +/-    1.25      -4.6 +/-    1.25  0.050 / 0.180
G24     66.4           28.9                4.3 +/-    0.72       7.7 +/-    0.72  0.050 / 0.140
G27     268.0          36.1                6.5 +/-    1.68      10.2 +/-    1.68  0.030 / 0.030
G32     228.8          55.3                8.7 +/-    0.47      10.3 +/-    0.47  0.040 / 0.030