PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-15:58:10
G01     79.0           33.3               13.8 +/-    0.51      22.6 +/-    0.51  0.030 / 0.040
G07     133.0          37.4               13.4 +/-    0.93      20.4 +/-    0.93  0.030 / 0.040
G11     58.9           35.0               12.1 +/-    0.28      19.1 +/-    0.28  0.090 / 0.110
G13     283.1          37.8               11.6 +/-    1.02      17.5 +/-    1.02  0.070 / 0.120
G15     310.1          12.3                9.5 +/-    2.73      25.3 +/-    2.73  0.050 / 0.130
G17     223.3          62.0               14.6 +/-    1.46      16.3 +/-    1.46  0.050 / 0.140
G18     54.7           21.1               11.4 +/-    1.58      24.4 +/-    1.58  0.040 / 0.080
G19     219.6          33.1               12.2 +/-    1.39      20.1 +/-    1.39  0.050 / 0.080
G28     6.9            60.7               11.9 +/-    0.36      13.4 +/-    0.36  0.050 / 0.060
G30     126.2          68.9               13.0 +/-    0.85      13.8 +/-    0.85  0.040 / 0.060