PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/17-18:12:30
G07     325.4          54.9               12.7 +/-    0.55      15.1 +/-    0.55  0.050 / 0.030
G08     113.5          50.5               14.1 +/-    0.69      17.6 +/-    0.69  0.040 / 0.020
G09     205.6          78.8               13.1 +/-    0.43      13.3 +/-    0.43  0.050 / 0.080
G16     45.6           10.0                8.4 +/-    2.82      23.5 +/-    2.82  0.040 / 0.070
G23     152.3          42.3               13.2 +/-    0.59      18.5 +/-    0.59  0.140 / 0.820
G27     59.4           33.6               10.0 +/-    1.31      16.3 +/-    1.31  0.180 / 0.740
G28     233.9          26.1               15.1 +/-    3.11      28.7 +/-    3.11  0.040 / 0.010
G30     299.2          33.5               10.5 +/-    0.96      17.2 +/-    0.96  0.050 / 0.030