PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-22:58:00
G10     266.0          36.8               16.8 +/-    1.02      25.8 +/-    1.02  0.160 / 0.400
G13     43.0           20.5               13.6 +/-    1.18      29.6 +/-    1.18  0.150 / 0.330
G15     60.8           50.1               18.7 +/-    0.58      23.5 +/-    0.58  0.040 / 0.050
G16     282.6          11.5               15.4 +/-    2.23      41.5 +/-    2.23  0.040 / 0.040
G18     298.4          63.9               16.1 +/-    0.87      17.7 +/-    0.87  0.160 / 0.690
G20     54.4           34.6               14.3 +/-    1.36      22.9 +/-    1.36  0.140 / 0.560
G21     3.3            71.9               17.8 +/-    1.01      18.6 +/-    1.01  0.160 / 0.310
G24     122.1          13.4               21.3 +/-    1.75      54.9 +/-    1.75  0.150 / 0.260
G27     318.1          19.7               13.5 +/-    1.67      29.8 +/-    1.67  0.070 / 0.250
G29     166.5          28.7               21.3 +/-    1.71      38.4 +/-    1.71  0.080 / 0.270