PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/11-20:12:50
G10     261.7          34.1               28.3 +/-    1.38      45.7 +/-    1.38  0.110 / 0.480
G13     45.3           23.5               17.3 +/-    1.17      35.1 +/-    1.17  0.110 / 0.420
G15     65.0           51.9               23.6 +/-    0.41      29.1 +/-    0.41  0.050 / 0.050
G16     288.4          12.3               21.1 +/-    2.03      55.8 +/-    2.03  0.050 / 0.050
G18     291.3          62.9               24.4 +/-    0.68      27.1 +/-    0.68  0.120 / 0.300
G20     50.9           38.9               19.9 +/-    0.63      29.4 +/-    0.63  0.140 / 0.210
G21     357.5          69.9               23.9 +/-    0.61      25.3 +/-    0.61  0.040 / 0.070
G26     261.6          10.2               22.8 +/-    3.16      63.4 +/-    3.16  0.040 / 0.080
G27     319.9          16.3               14.7 +/-    1.90      35.3 +/-    1.90  0.200 / 0.450
G29     165.1          31.4               29.8 +/-    1.90      50.7 +/-    1.90  0.200 / 0.380