PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/24-11:43:00
G01     320.1          15.7                3.9 +/-    2.73       9.5 +/-    2.73  0.110 / 0.250
G08     259.4          15.0                3.9 +/-    3.46       9.8 +/-    3.46  0.180 / 0.250
G10     75.2           54.0                5.9 +/-    0.94       7.1 +/-    0.94  0.040 / 0.040
G11     305.1          22.1                4.7 +/-    1.54       9.8 +/-    1.54  0.050 / 0.060
G14     288.4          70.6                4.5 +/-    1.23       4.7 +/-    1.23  0.040 / 0.030
G18     306.1          40.4                5.0 +/-    1.77       7.2 +/-    1.77  0.040 / 0.030
G20     102.7          31.2                5.9 +/-    0.96      10.1 +/-    0.96  0.030 / 0.020
G27     228.0          11.6                3.7 +/-    1.59      10.0 +/-    1.59  0.020 / 0.020
G31     178.1          36.7                6.1 +/-    1.29       9.4 +/-    1.29  0.120 / 0.280
G32     345.7          71.8                4.6 +/-    0.91       4.8 +/-    0.91  0.210 / 0.300