PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-23:43:10
G08     298.2          22.8               10.8 +/-    1.30      22.2 +/-    1.30  0.040 / 0.030
G10     351.7          62.3                9.9 +/-    0.34      11.1 +/-    0.34  0.030 / 0.020
G14     225.1          42.3               14.6 +/-    2.36      20.5 +/-    2.36  0.040 / 0.060
G18     54.9           54.5               12.1 +/-    0.73      14.5 +/-    0.73  0.050 / 0.060
G21     142.3          45.0               13.4 +/-    1.06      18.0 +/-    1.06  0.060 / 0.070
G24     63.5           28.9               11.0 +/-    0.85      19.7 +/-    0.85  0.060 / 0.080
G27     259.5          34.4               15.5 +/-    1.31      24.9 +/-    1.31  0.070 / 0.090
G32     234.7          59.2               13.1 +/-    1.44      14.9 +/-    1.44  0.080 / 0.090