PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-20:43:00
G07     32.9           69.6               13.7 +/-    0.47      14.5 +/-    0.47  0.040 / 0.050
G08     59.0           47.7               12.9 +/-    0.65      16.8 +/-    0.65  0.030 / 0.040
G09     179.7          43.3               17.3 +/-    0.71      23.9 +/-    0.71  0.200 / 0.430
G11     126.9          31.1               15.9 +/-    1.10      27.3 +/-    1.10  0.100 / 0.430
G18     109.7          13.5               16.6 +/-    2.18      42.6 +/-    2.18  0.030 / 0.030
G23     159.4          10.4               23.1 +/-    2.59      64.0 +/-    2.59  0.030 / 0.040
G27     38.1           11.4               11.3 +/-    1.54      30.5 +/-    1.54  0.060 / 0.050
G28     268.1          50.0               14.2 +/-    2.83      18.0 +/-    2.83  0.050 / 0.050
G30     329.7          57.8               12.5 +/-    0.56      14.4 +/-    0.56  0.030 / 0.040