PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-18:42:30
G07     321.8          54.6               10.8 +/-    0.67      13.0 +/-    0.67  0.040 / 0.060
G08     116.7          45.9               13.8 +/-    0.80      18.4 +/-    0.80  0.040 / 0.050
G09     262.8          82.8                9.2 +/-    0.97       9.2 +/-    0.97  0.440 / 0.430
G16     42.9           22.3                8.7 +/-    1.84      18.2 +/-    1.84  0.280 / 0.640
G23     150.0          56.7               12.9 +/-    0.86      15.1 +/-    0.86  0.030 / 0.020
G27     72.0           37.5               11.8 +/-    0.97      17.9 +/-    0.97  0.030 / 0.020
G28     227.6          15.2               11.0 +/-    5.64      27.2 +/-    5.64  0.060 / 0.070
G30     292.0          27.3               10.5 +/-    1.24      19.4 +/-    1.24  0.060 / 0.060