PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-18:12:50
G01     124.0          14.2               16.2 +/-    1.49      41.0 +/-    1.49  0.060 / 0.090
G07     63.2           69.1               12.4 +/-    0.34      13.2 +/-    0.34  0.050 / 0.060
G08     49.1           39.0               10.2 +/-    1.58      15.1 +/-    1.58  0.040 / 0.040
G09     177.9          32.3               13.1 +/-    2.01      22.0 +/-    2.01  0.030 / 0.040
G11     115.4          37.2               13.6 +/-    0.69      20.8 +/-    0.69  0.030 / 0.030
G13     320.1          14.6               10.2 +/-    2.56      25.5 +/-    2.56  0.030 / 0.030
G17     201.6          15.6               17.2 +/-    2.27      42.1 +/-    2.27  0.150 / 0.280
G18     100.6          18.4               12.5 +/-    2.08      28.5 +/-    2.08  0.150 / 0.260
G28     282.9          55.0               11.8 +/-    2.24      14.0 +/-    2.24  0.100 / 0.210
G30     339.6          64.6               12.4 +/-    0.64      13.6 +/-    0.64  0.110 / 0.160