PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-03:57:50
G02     226.5          71.5                4.6 +/-    0.53       4.8 +/-    0.53  0.180 / 0.330
G05     173.6          10.9               -3.5 +/-   17.14      -9.6 +/-   17.14  0.200 / 0.330
G06     44.3           67.4                3.5 +/-    0.50       3.8 +/-    0.50  0.050 / 0.050
G12     320.6          43.6                2.5 +/-    0.51       3.4 +/-    0.51  0.050 / 0.050
G17     64.0           28.6                4.1 +/-    1.52       7.4 +/-    1.52  0.030 / 0.020
G19     49.9           43.1                3.9 +/-    1.26       5.3 +/-    1.26  0.020 / 0.030
G24     254.3          38.5                3.8 +/-    1.58       5.7 +/-    1.58  0.040 / 0.090