PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/21-23:58:10
G01     37.7           10.5                7.7 +/-    4.32      21.3 +/-    4.32  0.080 / 0.140
G02     199.3          15.5               -1.2 +/-    1.73      -3.0 +/-    1.73  0.130 / 0.130
G06     176.7          43.4                9.5 +/-    1.26      13.1 +/-    1.26  0.180 / 0.190
G13     230.9          17.4                8.7 +/-    1.64      20.5 +/-    1.64  0.150 / 0.240
G17     17.0           63.5                7.4 +/-    0.45       8.2 +/-    0.45  0.050 / 0.060
G19     300.2          71.3                6.7 +/-    0.70       7.0 +/-    0.70  0.050 / 0.040
G24     312.5          26.6                6.7 +/-    1.52      12.6 +/-    1.52  0.040 / 0.030
G28     77.5           46.1                7.1 +/-    0.94       9.4 +/-    0.94  0.040 / 0.030
G30     156.0          19.8                8.4 +/-    1.92      18.6 +/-    1.92  0.110 / 0.170