PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/18-00:42:50
G01     45.0           21.1                8.5 +/-    3.73      18.1 +/-    3.73  0.180 / 0.200
G06     177.1          31.5               14.7 +/-    1.58      25.0 +/-    1.58  0.190 / 0.200
G11     44.1           11.5                5.4 +/-    5.60      14.6 +/-    5.60  0.020 / 0.020
G13     244.2          26.3               10.7 +/-    1.75      20.4 +/-    1.75  0.020 / 0.020
G15     276.4          14.4                7.9 +/-    1.12      19.9 +/-    1.12  0.080 / 0.090
G17     331.7          75.9               10.3 +/-    0.30      10.6 +/-    0.30  0.080 / 0.090
G19     260.3          65.1               11.1 +/-    0.60      12.1 +/-    0.60  0.030 / 0.060
G24     318.4          13.4                5.1 +/-    6.59      13.1 +/-    6.59  0.040 / 0.060
G28     63.3           49.6                9.5 +/-    0.48      12.1 +/-    0.48  0.110 / 0.200
G30     151.7          31.3               12.5 +/-    0.85      21.2 +/-    0.85  0.110 / 0.300