PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-08:57:40
G08     303.3          21.7                5.9 +/-    1.48      12.5 +/-    1.48  0.030 / 0.030
G10     347.4          61.9                5.6 +/-    0.59       6.2 +/-    0.59  0.030 / 0.020
G14     221.5          37.7                8.1 +/-    1.73      12.3 +/-    1.73  0.050 / 0.060
G20     49.7           57.3                6.9 +/-    0.57       8.0 +/-    0.57  0.040 / 0.060
G21     139.9          48.5                8.1 +/-    0.49      10.4 +/-    0.49  0.070 / 0.080
G24     65.3           28.3                4.1 +/-    1.00       7.4 +/-    1.00  0.100 / 0.090
G27     268.6          35.9                8.8 +/-    1.54      13.7 +/-    1.54  0.090 / 0.090
G32     228.7          52.8                6.8 +/-    2.71       8.3 +/-    2.71  0.120 / 0.080