PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-06:57:50
G08     304.6          21.0                3.5 +/-    2.17       7.4 +/-    2.17  0.090 / 0.080
G10     346.5          61.8                3.4 +/-    0.62       3.8 +/-    0.62  0.060 / 0.080
G14     221.1          36.9                5.0 +/-    1.54       7.7 +/-    1.54  0.050 / 0.050
G20     48.6           57.7                4.5 +/-    0.56       5.2 +/-    0.56  0.040 / 0.050
G21     139.6          50.3                6.5 +/-    0.70       8.2 +/-    0.70  0.030 / 0.020
G24     66.5           28.7                4.3 +/-    1.57       7.7 +/-    1.57  0.040 / 0.030
G27     268.9          36.2                4.7 +/-    1.67       7.3 +/-    1.67  0.100 / 0.140
G32     228.2          53.8                5.2 +/-    2.53       6.3 +/-    2.53  0.110 / 0.140