PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-03:58:10
G08     311.4          17.9                6.0 +/-   23.87      13.9 +/-   23.87  0.160 / 0.260
G10     329.1          59.5                2.3 +/-   23.43       2.6 +/-   23.43  0.170 / 0.260
G14     217.6          26.5                7.1 +/-   24.48      13.5 +/-   24.48  0.070 / 0.070
G15     46.6           13.3                3.5 +/-   23.48       9.1 +/-   23.48  0.070 / 0.190
G20     21.5           63.8                6.7 +/-   23.55       7.4 +/-   23.55  0.030 / 0.040
G21     132.6          59.4                6.1 +/-   23.38       7.0 +/-   23.38  0.040 / 0.200
G27     276.8          37.6                3.9 +/-   23.20       5.9 +/-   23.20  0.170 / 0.170
G32     221.9          52.8                6.2 +/-   23.07       7.5 +/-   23.07  0.150 / 0.260