PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-19:12:30
G10     255.8          31.1               17.5 +/-    2.98      30.0 +/-    2.98  0.050 / 0.050
G13     48.5           26.0               11.6 +/-    0.69      22.1 +/-    0.69  0.050 / 0.060
G15     81.2           58.6               13.5 +/-    0.94      15.6 +/-    0.94  0.070 / 0.180
G16     289.6          15.0               11.7 +/-    2.14      29.1 +/-    2.14  0.070 / 0.200
G20     278.3          54.5               15.9 +/-    0.84      19.1 +/-    0.84  0.130 / 0.450
G21     343.0          64.6               11.6 +/-    1.22      12.7 +/-    1.22  0.120 / 0.420
G26     262.7          13.1               15.8 +/-    1.84      41.1 +/-    1.84  0.030 / 0.050
G29     166.0          43.6               15.5 +/-    0.96      21.3 +/-    0.96  0.030 / 0.040