PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/18-09:58:00
G01     320.3          14.8                0.6 +/-   11.29       1.4 +/-   11.29  0.110 / 0.400
G08     261.1          15.6                4.3 +/-    1.08      10.4 +/-    1.08  0.110 / 0.340
G10     73.4           54.5                4.4 +/-    0.58       5.2 +/-    0.58  0.150 / 0.310
G11     306.3          21.4                2.4 +/-    1.99       5.2 +/-    1.99  0.140 / 0.390
G14     284.4          70.1                4.3 +/-    1.00       4.6 +/-    1.00  0.030 / 0.040
G18     307.4          39.0                2.6 +/-    1.31       3.9 +/-    1.31  0.030 / 0.040
G20     101.6          32.0                6.3 +/-    0.87      10.5 +/-    0.87  0.040 / 0.050
G27     228.6          12.3                3.3 +/-    3.64       8.8 +/-    3.64  0.040 / 0.040
G31     177.6          36.3                5.5 +/-    1.44       8.6 +/-    1.44  0.080 / 0.280
G32     341.0          72.4                5.1 +/-    0.81       5.3 +/-    0.81  0.080 / 0.230