PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-04:12:50
G01     320.2          14.7              -16.0 +/-   24.61     -40.1 +/-   24.61  0.150 / 0.270
G08     260.4          15.1                6.7 +/-    0.77      16.6 +/-    0.77  0.280 / 0.360
G10     73.7           55.1                4.1 +/-    0.50       4.9 +/-    0.50  0.160 / 0.320
G11     306.0          21.5                6.8 +/-    1.83      14.5 +/-    1.83  0.160 / 0.310
G14     280.9          68.1                4.8 +/-    1.06       5.2 +/-    1.06  0.160 / 0.300
G18     307.9          37.4                4.6 +/-    1.68       6.9 +/-    1.68  0.090 / 0.240
G20     91.2           50.6                4.4 +/-    1.24       5.5 +/-    1.24  0.030 / 0.040
G27     226.8          11.2                8.7 +/-    2.02      23.7 +/-    2.02  0.040 / 0.050
G31     175.0          39.7                5.5 +/-    1.38       8.1 +/-    1.38  0.160 / 0.280
G32     4.4            69.1                3.6 +/-    0.60       3.9 +/-    0.60  0.150 / 0.240