PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/14-11:27:50
G01     298.6          38.5                5.3 +/-    3.11       7.8 +/-    3.11  0.090 / 0.080
G03     310.4          16.4                2.5 +/-    4.27       6.0 +/-    4.27  0.060 / 0.090
G10     114.1          32.7                5.2 +/-    1.62       8.6 +/-    1.62  0.040 / 0.030
G11     271.2          27.2                7.1 +/-    1.20      13.2 +/-    1.20  0.050 / 0.030
G14     14.9           62.3                4.5 +/-    0.90       5.0 +/-    0.90  0.060 / 0.080
G18     259.7          50.2                6.4 +/-    7.95       8.0 +/-    7.95  0.070 / 0.080
G22     313.7          38.0                3.1 +/-    1.25       4.7 +/-    1.25  0.080 / 0.100
G25     73.0           17.7                3.4 +/-    1.70       7.8 +/-    1.70  0.070 / 0.080
G31     156.6          72.9                6.1 +/-    0.45       6.4 +/-    0.45  0.050 / 0.050
G32     38.9           51.3                3.2 +/-    0.82       4.0 +/-    0.82  0.060 / 0.050