PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/22-01:57:50
G10     299.3          52.5                9.8 +/-    1.77      12.0 +/-    1.77  0.060 / 0.130
G14     210.9          10.9               -6.3 +/-   15.44     -17.2 +/-   15.44  0.060 / 0.080
G15     46.2           29.3                7.0 +/-    1.38      12.5 +/-    1.38  0.040 / 0.030
G20     315.3          59.2               17.1 +/-    0.61      19.5 +/-    0.61  0.040 / 0.030
G21     98.5           74.2               10.7 +/-    0.63      11.1 +/-    0.63  0.070 / 0.120
G24     94.8           26.8                9.7 +/-    2.14      18.2 +/-    2.14  0.070 / 0.110
G27     299.1          34.7                9.3 +/-    2.01      14.9 +/-    2.01  0.210 / 0.400
G32     210.8          35.1               14.1 +/-    1.49      22.4 +/-    1.49  0.120 / 0.110