PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/01-21:12:50
G10     243.9          20.9               14.0 +/-    1.64      30.1 +/-    1.64  0.040 / 0.070
G13     61.8           33.6                9.8 +/-    1.23      15.9 +/-    1.23  0.040 / 0.060
G15     111.7          58.1               10.2 +/-    0.65      11.8 +/-    0.65  0.130 / 0.580
G16     302.1          16.0                6.3 +/-    2.38      15.3 +/-    2.38  0.120 / 0.450
G20     246.5          7.0                 4.5 +/-    1.69      13.2 +/-    1.69  0.070 / 0.130
G21     323.0          53.5               10.2 +/-    1.33      12.3 +/-    1.33  0.050 / 0.120
G26     274.3          18.7               10.4 +/-    2.29      23.7 +/-    2.29  0.030 / 0.040
G29     162.5          60.9               12.1 +/-    1.06      13.6 +/-    1.06  0.030 / 0.040