PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-01:28:10
G10     287.4          47.6                8.4 +/-    3.20      10.9 +/-    3.20  0.200 / 0.140
G15     48.2           36.1                9.3 +/-    1.13      14.4 +/-    1.13  0.120 / 0.140
G18     339.4          66.7                9.1 +/-    0.68       9.8 +/-    0.68  0.110 / 0.120
G20     67.3           21.1                8.8 +/-    1.75      18.9 +/-    1.75  0.140 / 0.180
G21     70.9           76.8               11.0 +/-    0.34      11.3 +/-    0.34  0.050 / 0.030
G24     105.8          23.6               10.2 +/-    1.22      20.6 +/-    1.22  0.050 / 0.030
G27     305.4          32.1                9.1 +/-    1.39      15.3 +/-    1.39  0.080 / 0.160
G29     167.6          11.6               12.2 +/-    1.42      32.8 +/-    1.42  0.070 / 0.120
G32     208.7          24.6               11.7 +/-    1.82      23.1 +/-    1.82  0.100 / 0.080