PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/11-03:27:30
G02     31.3           57.3                8.9 +/-    0.92      10.3 +/-    0.92  0.030 / 0.030
G05     142.2          59.3               10.5 +/-    0.39      12.0 +/-    0.39  0.030 / 0.020
G06     51.6           19.2                8.1 +/-    3.03      18.2 +/-    3.03  0.030 / 0.040
G12     207.6          72.4                9.1 +/-    0.27       9.5 +/-    0.27  0.040 / 0.040
G19     96.7           12.8                7.5 +/-    1.79      19.7 +/-    1.79  0.160 / 0.190
G25     303.1          49.9                8.5 +/-    4.62      10.8 +/-    4.62  0.190 / 0.210
G29     304.5          24.9                9.1 +/-    1.20      17.9 +/-    1.20  0.120 / 0.140