PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/28-00:28:10
G03     192.4          24.7                9.6 +/-    1.83      18.9 +/-    1.83  0.110 / 0.320
G07     286.5          35.3                6.1 +/-    0.92       9.7 +/-    0.92  0.210 / 0.250
G08     144.4          24.7               12.2 +/-    1.79      23.9 +/-    1.79  0.040 / 0.060
G09     320.6          58.0                4.9 +/-    0.67       5.6 +/-    0.67  0.040 / 0.060
G16     44.7           45.9                6.1 +/-    0.59       8.2 +/-    0.59  0.120 / 0.130
G22     178.5          10.4                8.7 +/-    5.73      24.2 +/-    5.73  0.110 / 0.160
G23     88.9           82.6                4.9 +/-    0.60       5.0 +/-    0.60  0.040 / 0.030
G26     43.1           16.3                3.8 +/-    2.24       9.0 +/-    2.24  0.030 / 0.030
G27     102.8          32.0                7.6 +/-    1.66      12.8 +/-    1.66  0.060 / 0.060
G30     271.3          12.0                3.5 +/-   22.22       9.2 +/-   22.22  0.050 / 0.060