PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-00:27:30
G02     33.3           55.4               11.1 +/-    0.97      13.2 +/-    0.97  0.030 / 0.040
G05     137.0          62.3               13.9 +/-    0.77      15.5 +/-    0.77  0.030 / 0.040
G06     53.9           15.3                9.9 +/-    1.49      24.5 +/-    1.49  0.030 / 0.040
G12     197.5          67.6               12.8 +/-    0.73      13.7 +/-    0.73  0.040 / 0.040
G19     99.3           11.4               12.3 +/-    1.60      33.4 +/-    1.60  0.040 / 0.060
G25     298.1          52.7               11.8 +/-    0.72      14.5 +/-    0.72  0.040 / 0.060
G29     306.6          26.8                9.4 +/-    1.25      17.7 +/-    1.25  0.140 / 0.420