PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/23-01:43:10
G10     292.8          50.3                9.9 +/-    0.96      12.4 +/-    0.96  0.050 / 0.110
G15     47.2           33.4                6.0 +/-    0.80       9.8 +/-    0.80  0.080 / 0.120
G20     306.7          56.8               10.1 +/-    0.75      11.8 +/-    0.75  0.060 / 0.120
G21     81.9           76.5                8.6 +/-    1.10       8.8 +/-    1.10  0.080 / 0.110
G24     99.6           25.1                8.9 +/-    0.82      17.3 +/-    0.82  0.050 / 0.060
G27     303.8          32.7                8.9 +/-    1.43      14.8 +/-    1.43  0.040 / 0.050
G29     168.7          11.4               13.6 +/-    3.02      36.9 +/-    3.02  0.050 / 0.050
G32     209.0          30.6               13.5 +/-    2.98      23.2 +/-    2.98  0.040 / 0.050