PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-16:57:40
G10     252.1          27.2               12.9 +/-    1.39      24.1 +/-    1.39  0.040 / 0.030
G13     52.8           30.1               12.9 +/-    1.99      22.5 +/-    1.99  0.040 / 0.040
G15     81.0           56.2               15.2 +/-    0.94      17.9 +/-    0.94  0.140 / 0.220
G16     299.3          13.4               10.8 +/-    1.69      27.9 +/-    1.69  0.120 / 0.290
G18     273.6          58.4               13.9 +/-    1.70      16.0 +/-    1.70  0.050 / 0.060
G20     42.6           48.8               12.2 +/-    0.98      15.6 +/-    0.98  0.060 / 0.070
G21     343.1          64.4               13.8 +/-    0.58      15.1 +/-    0.58  0.100 / 0.120
G26     269.6          14.6               11.0 +/-    2.34      27.7 +/-    2.34  0.100 / 0.130
G29     162.7          42.5               16.4 +/-    0.78      22.9 +/-    0.78  0.140 / 0.510