PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-01:27:40
G10     244.4          21.1               12.4 +/-    2.80      26.5 +/-    2.80  0.110 / 0.350
G13     61.4           33.6                8.9 +/-    1.11      14.4 +/-    1.11  0.130 / 0.430
G15     105.6          57.8               11.7 +/-    0.62      13.6 +/-    0.62  0.030 / 0.050
G16     302.1          15.7                6.1 +/-    1.84      15.0 +/-    1.84  0.040 / 0.050
G20     257.1          39.8               13.8 +/-    2.96      20.1 +/-    2.96  0.040 / 0.040
G21     324.0          54.2               10.0 +/-    0.48      12.0 +/-    0.48  0.030 / 0.040
G26     273.8          18.4               10.2 +/-    2.06      23.3 +/-    2.06  0.070 / 0.120
G29     162.8          59.8               11.9 +/-    0.42      13.6 +/-    0.42  0.070 / 0.120