PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/19-20:12:50
G10     277.7          43.3               18.0 +/-    0.72      24.9 +/-    0.72  0.070 / 0.130
G13     38.9           12.0               13.2 +/-    1.74      35.2 +/-    1.74  0.070 / 0.110
G15     51.0           40.4               18.0 +/-    0.63      26.1 +/-    0.63  0.070 / 0.060
G18     325.3          66.9               16.8 +/-    0.91      18.1 +/-    0.91  0.050 / 0.050
G20     61.1           28.2               15.9 +/-    0.75      28.9 +/-    0.75  0.060 / 0.160
G21     46.6           76.2               19.2 +/-    0.61      19.7 +/-    0.61  0.070 / 0.140
G24     113.2          19.5               23.6 +/-    1.95      52.5 +/-    1.95  0.040 / 0.040
G27     312.0          27.3               18.9 +/-    2.07      35.1 +/-    2.07  0.030 / 0.040
G29     166.2          16.2               21.9 +/-    1.45      53.0 +/-    1.45  0.150 / 0.170
G32     206.9          15.7               23.7 +/-    2.11      58.1 +/-    2.11  0.090 / 0.140