PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-01:43:10
G10     267.1          37.4               10.0 +/-    1.05      15.1 +/-    1.05  0.210 / 0.320
G13     42.3           19.4                8.3 +/-    2.34      18.6 +/-    2.34  0.240 / 0.460
G15     61.1           50.9               10.5 +/-    0.69      13.1 +/-    0.69  0.200 / 0.290
G16     280.2          11.4               10.1 +/-    2.32      27.3 +/-    2.32  0.210 / 0.260
G18     298.4          63.5                9.3 +/-    0.59      10.3 +/-    0.59  0.110 / 0.070
G20     55.5           33.1                7.9 +/-    1.46      13.0 +/-    1.46  0.100 / 0.080
G21     2.8            72.1                7.9 +/-    0.36       8.3 +/-    0.36  0.040 / 0.030
G24     121.2          14.0               11.5 +/-    2.65      29.2 +/-    2.65  0.050 / 0.030
G27     317.6          20.5                8.8 +/-    2.50      19.0 +/-    2.50  0.070 / 0.100
G29     167.4          29.0               12.7 +/-    1.09      22.8 +/-    1.09  0.060 / 0.110