PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-01:58:10
G10     265.1          37.1               12.3 +/-    1.77      18.7 +/-    1.77  0.140 / 0.150
G13     42.8           19.6                7.3 +/-    1.05      16.2 +/-    1.05  0.110 / 0.150
G15     62.7           51.7                9.1 +/-    0.59      11.2 +/-    0.59  0.140 / 0.300
G16     279.4          12.8                9.0 +/-    1.12      23.6 +/-    1.12  0.120 / 0.300
G20     283.1          52.2               13.7 +/-    1.14      16.9 +/-    1.14  0.150 / 0.440
G21     356.3          70.3               10.4 +/-    0.67      11.0 +/-    0.67  0.140 / 0.340
G24     120.9          13.3               12.5 +/-    1.41      32.3 +/-    1.41  0.050 / 0.050
G27     319.4          17.4                6.7 +/-    1.89      15.6 +/-    1.89  0.040 / 0.060
G29     168.2          34.0               11.9 +/-    2.50      19.3 +/-    2.50  0.080 / 0.080