PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-01:43:00
G02     66.6           26.8                9.5 +/-    2.15      17.9 +/-    2.15  0.060 / 0.140
G05     49.2           52.2               12.3 +/-    0.58      15.1 +/-    0.58  0.080 / 0.140
G12     182.5          23.1               15.8 +/-    1.00      32.3 +/-    1.00  0.120 / 0.260
G13     121.3          20.9               15.9 +/-    1.86      34.2 +/-    1.86  0.160 / 0.310
G15     159.5          18.8               17.6 +/-    1.71      39.8 +/-    1.71  0.040 / 0.030
G20     222.5          15.5               20.9 +/-    2.40      51.5 +/-    2.40  0.030 / 0.040
G21     278.0          21.9               13.6 +/-    2.38      28.6 +/-    2.38  0.060 / 0.210
G25     226.7          45.4               14.7 +/-    2.58      19.7 +/-    2.58  0.110 / 0.230
G29     333.1          62.0               13.7 +/-    0.62      15.3 +/-    0.62  0.060 / 0.080