PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/27-05:12:40
G01     129.1          10.0              -12.1 +/-   30.51     -33.6 +/-   30.51  0.090 / 0.120
G07     46.3           69.3                4.3 +/-    0.57       4.5 +/-    0.57  0.080 / 0.080
G08     52.3           41.0                3.4 +/-    0.86       4.8 +/-    0.86  0.030 / 0.020
G09     178.6          39.2                7.0 +/-    0.81      10.3 +/-    0.81  0.030 / 0.030
G11     121.1          32.9                6.9 +/-    0.87      11.4 +/-    0.87  0.150 / 0.270
G17     199.3          13.5                3.4 +/-    3.16       8.7 +/-    3.16  0.250 / 0.250
G23     161.0          11.2                6.0 +/-    2.03      16.3 +/-    2.03  0.080 / 0.050
G28     273.0          52.0                5.3 +/-    2.49       6.5 +/-    2.49  0.060 / 0.040
G30     331.3          58.9                3.8 +/-    0.66       4.4 +/-    0.66  0.310 / 0.360