PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-19:43:00
G02     226.6          68.2               16.4 +/-    0.90      17.5 +/-    0.90  0.120 / 0.290
G05     174.3          10.4               -0.8 +/-   38.28      -2.3 +/-   38.28  0.130 / 0.250
G06     43.9           63.9               15.5 +/-    0.34      17.0 +/-    0.34  0.040 / 0.070
G12     321.7          47.6               14.5 +/-    1.45      18.8 +/-    1.45  0.030 / 0.070
G17     64.8           27.1               13.2 +/-    0.54      24.7 +/-    0.54  0.040 / 0.050
G19     47.3           45.3               14.7 +/-    0.35      19.8 +/-    0.35  0.040 / 0.050
G24     252.0          38.4               16.0 +/-    1.20      23.8 +/-    1.20  0.060 / 0.080