PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-23:58:10
G10     258.5          31.9               11.4 +/-    1.76      19.1 +/-    1.76  0.130 / 0.450
G13     47.4           25.8                8.9 +/-    1.55      17.0 +/-    1.55  0.140 / 0.420
G15     72.3           55.4               11.0 +/-    0.89      13.0 +/-    0.89  0.030 / 0.030
G16     289.1          13.5                9.2 +/-    1.07      23.6 +/-    1.07  0.040 / 0.030
G18     282.8          60.3                9.9 +/-    1.84      11.2 +/-    1.84  0.220 / 0.320
G20     49.5           40.1                8.1 +/-    1.64      11.7 +/-    1.64  0.260 / 0.310
G21     346.6          66.7                9.5 +/-    0.68      10.2 +/-    0.68  0.130 / 0.120
G26     261.9          11.7               12.4 +/-    2.88      33.2 +/-    2.88  0.080 / 0.090
G27     320.9          13.7                6.7 +/-    2.36      17.3 +/-    2.36  0.130 / 0.280
G29     165.8          37.4               11.3 +/-    0.76      17.2 +/-    0.76  0.110 / 0.220