PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-20:43:00
G01     123.0          15.0               16.2 +/-    2.86      40.4 +/-    2.86  0.190 / 0.110
G07     66.7           68.7               13.1 +/-    0.20      14.0 +/-    0.20  0.270 / 0.070
G08     49.2           39.8               10.3 +/-    0.89      15.1 +/-    0.89  0.250 / 0.300
G09     178.2          31.5               14.6 +/-    0.74      24.8 +/-    0.74  0.420 / 0.410
G11     115.2          37.7               14.5 +/-    0.98      21.9 +/-    0.98  0.080 / 0.030
G13     319.8          15.3               10.2 +/-    2.57      25.2 +/-    2.57  0.110 / 0.040
G17     202.0          16.4               18.6 +/-    3.74      44.7 +/-    3.74  0.180 / 0.260
G18     99.6           18.9               13.0 +/-    1.41      29.5 +/-    1.41  0.340 / 0.200
G28     285.3          55.7               13.5 +/-    2.63      16.0 +/-    2.63  0.070 / 0.030
G30     344.0          66.5               12.7 +/-    0.63      13.7 +/-    0.63  0.080 / 0.030