PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-00:43:00
G10     243.4          21.8               13.3 +/-    1.52      28.0 +/-    1.52  0.180 / 0.130
G13     61.9           33.0                8.0 +/-    0.78      13.2 +/-    0.78  0.110 / 0.110
G15     103.1          57.1               11.8 +/-    1.20      13.8 +/-    1.20  0.040 / 0.050
G16     305.6          14.5                6.1 +/-    2.14      15.4 +/-    2.14  0.040 / 0.050
G20     259.1          44.7               11.7 +/-    3.49      15.9 +/-    3.49  0.090 / 0.130
G21     324.0          53.8                8.7 +/-    0.59      10.5 +/-    0.59  0.070 / 0.090
G26     277.5          18.2               10.9 +/-    1.33      25.1 +/-    1.33  0.040 / 0.040
G29     159.3          58.7               12.4 +/-    0.63      14.3 +/-    0.63  0.030 / 0.040