PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/04-20:12:30
G10     247.8          26.1               16.4 +/-    1.36      31.3 +/-    1.36  0.040 / 0.050
G13     55.9           30.4               12.7 +/-    1.60      22.0 +/-    1.60  0.040 / 0.050
G15     94.8           58.4               15.1 +/-    0.68      17.4 +/-    0.68  0.060 / 0.160
G16     298.6          15.8               11.0 +/-    2.08      26.8 +/-    2.08  0.080 / 0.110
G20     266.5          49.3               13.7 +/-    4.38      17.5 +/-    4.38  0.040 / 0.040
G21     329.5          57.1               14.5 +/-    0.61      16.9 +/-    0.61  0.030 / 0.040
G26     271.2          16.7               13.7 +/-    1.95      32.6 +/-    1.95  0.140 / 0.460
G29     162.5          54.2               16.0 +/-    1.08      19.2 +/-    1.08  0.160 / 0.430