PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-21:57:40
G10     290.0          49.3               11.4 +/-    3.13      14.6 +/-    3.13  0.030 / 0.030
G15     48.6           38.2                9.4 +/-    0.75      14.0 +/-    0.75  0.040 / 0.030
G20     339.4          65.3               11.1 +/-    0.59      12.0 +/-    0.59  0.110 / 0.110
G21     75.8           76.6               12.5 +/-    0.76      12.8 +/-    0.76  0.070 / 0.110
G24     100.5          24.2               12.7 +/-    1.03      25.2 +/-    1.03  0.120 / 0.090
G27     306.6          30.9               11.6 +/-    1.20      19.9 +/-    1.20  0.120 / 0.080
G29     168.6          12.9               15.1 +/-    3.56      39.5 +/-    3.56  0.080 / 0.140
G32     208.3          27.9               15.0 +/-    1.07      27.5 +/-    1.07  0.080 / 0.120