PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-22:12:30
G02     56.5           35.7               10.2 +/-    1.67      15.9 +/-    1.67  0.030 / 0.030
G05     62.6           63.3               12.0 +/-    0.51      13.3 +/-    0.51  0.030 / 0.040
G12     183.1          33.5               13.4 +/-    1.13      21.9 +/-    1.13  0.120 / 0.450
G13     130.3          13.2               15.5 +/-    3.77      40.2 +/-    3.77  0.110 / 0.390
G21     268.6          14.7               12.6 +/-    3.02      31.5 +/-    3.02  0.230 / 0.380
G25     240.9          53.8               12.0 +/-    4.28      14.5 +/-    4.28  0.170 / 0.350
G29     325.5          50.5               11.5 +/-    1.32      14.4 +/-    1.32  0.060 / 0.080