PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-05:12:30
G10     257.5          33.1                7.1 +/-    1.49      11.6 +/-    1.49  0.050 / 0.050
G13     47.1           24.4                3.5 +/-    0.69       7.0 +/-    0.69  0.050 / 0.040
G15     70.5           53.8                5.0 +/-    0.37       6.1 +/-    0.37  0.090 / 0.100
G16     291.7          13.9                5.6 +/-    1.81      14.2 +/-    1.81  0.070 / 0.090
G20     281.4          55.6                6.4 +/-    0.76       7.6 +/-    0.76  0.060 / 0.180
G21     347.5          66.2                2.4 +/-    0.92       2.6 +/-    0.92  0.060 / 0.210
G26     263.6          12.3                7.4 +/-    2.02      19.5 +/-    2.02  0.030 / 0.040
G29     163.8          38.0                6.0 +/-    1.17       9.0 +/-    1.17  0.040 / 0.040