PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/18-01:27:30
G02     199.7          22.7               11.3 +/-    2.22      23.2 +/-    2.22  0.030 / 0.030
G06     172.0          53.5               10.8 +/-    0.47      13.1 +/-    0.47  0.040 / 0.040
G13     227.5          12.9                9.4 +/-    4.08      24.5 +/-    4.08  0.040 / 0.040
G17     17.6           61.8                7.9 +/-    0.73       8.9 +/-    0.73  0.040 / 0.040
G19     323.5          70.9                8.0 +/-    0.66       8.4 +/-    0.66  0.060 / 0.080
G24     310.2          29.4                7.2 +/-    1.28      12.7 +/-    1.28  0.060 / 0.090
G28     88.8           39.1                8.7 +/-    1.12      12.8 +/-    1.12  0.070 / 0.100
G30     156.2          11.8               10.5 +/-    4.21      28.2 +/-    4.21  0.080 / 0.100