PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/22-01:13:00
G10     247.4          23.0               15.5 +/-    3.50      31.8 +/-    3.50  0.140 / 0.170
G13     58.2           33.1                9.5 +/-    0.76      15.6 +/-    0.76  0.110 / 0.220
G15     99.8           58.7               10.8 +/-    0.60      12.4 +/-    0.60  0.030 / 0.060
G16     300.7          14.7                6.9 +/-    2.63      17.4 +/-    2.63  0.030 / 0.040
G18     262.4          52.1               11.3 +/-    1.04      13.8 +/-    1.04  0.030 / 0.080
G20     41.2           50.3                8.8 +/-    0.43      11.1 +/-    0.43  0.040 / 0.090
G21     328.4          57.5               10.1 +/-    0.99      11.8 +/-    0.99  0.110 / 0.280
G26     272.9          16.9               11.8 +/-    1.72      28.0 +/-    1.72  0.160 / 0.370
G29     163.2          52.3               11.7 +/-    2.16      14.4 +/-    2.16  0.170 / 0.380