PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/12-15:57:30
G10     259.1          34.9               15.0 +/-    2.59      23.8 +/-    2.59  0.100 / 0.150
G13     45.9           22.9                8.1 +/-    2.21      16.7 +/-    2.21  0.100 / 0.320
G15     66.8           52.1               11.9 +/-    0.70      14.6 +/-    0.70  0.040 / 0.060
G20     287.1          58.3               13.4 +/-    1.53      15.4 +/-    1.53  0.040 / 0.070
G21     347.8          66.3               13.8 +/-    0.51      14.9 +/-    0.51  0.050 / 0.040
G26     260.1          11.6               10.3 +/-    9.46      27.7 +/-    9.46  0.040 / 0.040
G27     321.6          12.3                3.0 +/-   14.40       7.8 +/-   14.40  0.150 / 0.070
G29     166.1          41.1               17.1 +/-    0.71      24.4 +/-    0.71  0.090 / 0.060