PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/03-20:42:50
G01     315.0          25.1                7.9 +/-    2.27      15.3 +/-    2.27  0.240 / 0.210
G10     92.3           48.5                9.1 +/-    1.03      11.7 +/-    1.03  0.210 / 0.300
G11     294.7          26.5                8.0 +/-    3.27      15.1 +/-    3.27  0.190 / 0.210
G14     327.5          70.7                8.3 +/-    0.61       8.8 +/-    0.61  0.120 / 0.190
G18     109.6          21.4                9.6 +/-    1.07      20.5 +/-    1.07  0.030 / 0.040
G22     304.7          16.3                7.5 +/-    1.09      18.1 +/-    1.09  0.040 / 0.040
G25     92.6           12.5               11.5 +/-    1.53      30.3 +/-    1.53  0.040 / 0.020
G31     176.1          50.2               12.0 +/-    0.94      15.0 +/-    0.94  0.030 / 0.020
G32     20.1           61.7                8.2 +/-    0.69       9.2 +/-    0.69  0.080 / 0.190