PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-23:27:50
G05     48.3           20.5                7.6 +/-    3.00      16.4 +/-    3.00  0.120 / 0.300
G10     236.2          11.3                8.8 +/-   26.10      23.8 +/-   26.10  0.150 / 0.270
G13     77.6           37.4               11.7 +/-    1.70      17.7 +/-    1.70  0.030 / 0.050
G15     127.6          51.7               13.5 +/-    1.66      16.7 +/-    1.66  0.030 / 0.040
G16     315.8          11.3                8.0 +/-    0.96      21.7 +/-    0.96  0.040 / 0.070
G18     245.0          41.0                2.7 +/-   37.69       3.9 +/-   37.69  0.050 / 0.070
G20     29.5           65.3               11.1 +/-    1.67      12.1 +/-    1.67  0.130 / 0.260
G21     312.6          47.1                9.9 +/-    0.62      12.9 +/-    0.62  0.110 / 0.350
G26     289.6          19.9               10.1 +/-    1.15      22.3 +/-    1.15  0.060 / 0.150
G29     154.7          69.9               11.5 +/-    0.90      12.2 +/-    0.90  0.060 / 0.140