PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-00:57:30
G02     27.4           59.8               11.6 +/-    0.47      13.2 +/-    0.47  0.050 / 0.060
G05     146.4          56.8               13.4 +/-    0.89      15.6 +/-    0.89  0.040 / 0.080
G06     49.3           23.0               10.9 +/-    1.21      22.4 +/-    1.21  0.020 / 0.030
G12     222.1          75.9               12.7 +/-    1.24      13.0 +/-    1.24  0.030 / 0.040
G19     94.6           13.1               15.5 +/-    2.02      40.4 +/-    2.02  0.040 / 0.040
G25     304.7          49.3               12.3 +/-    0.50      15.7 +/-    0.50  0.040 / 0.050
G29     304.3          26.5               11.0 +/-    1.95      20.8 +/-    1.95  0.070 / 0.130