PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/28-01:27:30
G08     299.1          22.7                7.2 +/-    1.67      14.9 +/-    1.67  0.040 / 0.070
G10     349.3          62.1                6.7 +/-    0.75       7.5 +/-    0.75  0.050 / 0.080
G14     224.3          41.6               11.6 +/-    1.22      16.4 +/-    1.22  0.070 / 0.100
G18     52.4           55.5                7.8 +/-    0.45       9.3 +/-    0.45  0.060 / 0.090
G21     141.7          46.9               11.6 +/-    1.02      15.2 +/-    1.02  0.030 / 0.040
G24     64.7           29.2                8.4 +/-    0.57      14.9 +/-    0.57  0.030 / 0.030
G27     260.8          34.8               10.3 +/-    1.53      16.4 +/-    1.53  0.070 / 0.120
G32     233.6          59.4               11.0 +/-    0.57      12.5 +/-    0.57  0.080 / 0.110