PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-11:43:00
G01     320.5          14.1                1.6 +/-    2.64       4.0 +/-    2.64  0.090 / 0.260
G08     261.0          15.9                6.0 +/-    3.30      14.6 +/-    3.30  0.140 / 0.300
G10     72.2           54.9                5.3 +/-    0.85       6.3 +/-    0.85  0.020 / 0.020
G11     306.7          21.2                3.9 +/-    2.48       8.3 +/-    2.48  0.030 / 0.020
G14     282.8          69.9                4.0 +/-    1.11       4.2 +/-    1.11  0.040 / 0.040
G18     307.6          39.0                4.5 +/-    1.20       6.7 +/-    1.20  0.040 / 0.050
G20     101.0          32.5                5.4 +/-    0.61       9.0 +/-    0.61  0.030 / 0.030
G27     229.4          12.8                4.4 +/-    2.77      11.7 +/-    2.77  0.030 / 0.020
G31     178.5          34.7                6.5 +/-    0.65      10.3 +/-    0.65  0.110 / 0.180
G32     340.2          72.6                5.5 +/-    0.43       5.7 +/-    0.43  0.260 / 0.220