PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-19:57:30
G07     327.2          56.5               11.7 +/-    0.62      13.8 +/-    0.62  0.170 / 0.430
G08     109.9          48.3               13.5 +/-    0.88      17.5 +/-    0.88  0.120 / 0.350
G09     223.4          81.9               12.9 +/-    0.61      13.0 +/-    0.61  0.060 / 0.080
G16     43.8           18.5                4.6 +/-    0.61      10.6 +/-    0.61  0.060 / 0.070
G23     152.6          52.4               13.4 +/-    0.54      16.4 +/-    0.54  0.090 / 0.150
G27     66.7           36.6               11.6 +/-    0.41      17.8 +/-    0.41  0.080 / 0.150
G28     230.2          19.1               13.8 +/-    3.38      30.9 +/-    3.38  0.040 / 0.060
G30     295.2          29.7               11.2 +/-    1.78      19.7 +/-    1.78  0.030 / 0.060