PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-23:58:00
G02     199.4          16.8               10.0 +/-    2.21      23.7 +/-    2.21  0.110 / 0.100
G06     176.4          45.0               10.0 +/-    1.12      13.5 +/-    1.12  0.080 / 0.120
G13     229.8          16.4                9.4 +/-    1.98      22.6 +/-    1.98  0.040 / 0.060
G17     18.7           62.3                8.2 +/-    0.82       9.1 +/-    0.82  0.040 / 0.060
G19     305.2          71.4                7.9 +/-    0.59       8.3 +/-    0.59  0.030 / 0.030
G24     311.8          27.7                6.8 +/-    1.31      12.5 +/-    1.31  0.030 / 0.030
G28     79.3           45.4                9.1 +/-    1.04      12.2 +/-    1.04  0.130 / 0.250
G30     156.3          18.4               10.2 +/-    1.35      23.4 +/-    1.35  0.170 / 0.260