PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-19:58:10
G01     82.2           33.1               13.2 +/-    1.46      21.8 +/-    1.46  0.140 / 0.260
G07     131.2          40.0               13.6 +/-    1.00      19.8 +/-    1.00  0.260 / 0.250
G11     62.5           37.4               13.0 +/-    1.92      19.8 +/-    1.92  0.030 / 0.060
G13     286.7          37.4               12.7 +/-    1.60      19.3 +/-    1.60  0.050 / 0.080
G15     310.6          12.5                9.8 +/-    2.57      26.0 +/-    2.57  0.030 / 0.030
G17     220.7          56.3               13.8 +/-    1.40      16.2 +/-    1.40  0.030 / 0.030
G18     57.6           22.4               11.2 +/-    1.82      23.4 +/-    1.82  0.090 / 0.110
G19     218.1          32.1               13.0 +/-    1.57      21.8 +/-    1.57  0.100 / 0.090
G28     2.9            61.0               11.3 +/-    0.60      12.7 +/-    0.60  0.040 / 0.050
G30     122.4          69.4               12.9 +/-    1.04      13.7 +/-    1.04  0.050 / 0.060