PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/27-07:27:50
G08     311.9          18.0                4.0 +/-    2.01       9.2 +/-    2.01  0.030 / 0.040
G10     329.1          59.7                4.8 +/-    1.01       5.4 +/-    1.01  0.040 / 0.060
G14     216.2          28.9                8.9 +/-    1.88      16.0 +/-    1.88  0.060 / 0.090
G15     46.5           11.4                3.1 +/-    1.05       8.4 +/-    1.05  0.060 / 0.080
G20     32.9           61.3                4.8 +/-    0.72       5.4 +/-    0.72  0.030 / 0.040
G21     131.6          58.1                6.9 +/-    0.76       7.9 +/-    0.76  0.030 / 0.040
G24     76.1           29.7                4.6 +/-    0.56       8.2 +/-    0.56  0.060 / 0.090
G27     280.3          37.4                7.0 +/-    0.91      10.6 +/-    0.91  0.060 / 0.090
G32     220.8          45.0                9.6 +/-    1.12      12.9 +/-    1.12  0.110 / 0.160