PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-07:57:50
G01     122.8          15.0                7.1 +/-    2.59      17.6 +/-    2.59  0.030 / 0.040
G07     70.9           67.7                7.2 +/-    0.65       7.7 +/-    0.65  0.030 / 0.030
G08     46.1           33.2                6.1 +/-    1.98      10.1 +/-    1.98  0.030 / 0.030
G09     173.6          25.5                7.8 +/-    2.94      15.1 +/-    2.94  0.030 / 0.030
G11     110.5          38.3                8.3 +/-    1.37      12.4 +/-    1.37  0.140 / 0.280
G13     319.4          16.3                4.2 +/-    1.63      10.2 +/-    1.63  0.190 / 0.390
G17     199.9          21.9                6.6 +/-    1.28      13.9 +/-    1.28  0.110 / 0.190
G18     96.9           19.0                6.5 +/-    2.32      14.7 +/-    2.32  0.080 / 0.170
G28     283.2          54.7                7.8 +/-    3.15       9.3 +/-    3.15  0.130 / 0.140
G30     336.8          63.7                7.5 +/-    1.24       8.3 +/-    1.24  0.110 / 0.140