PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-16:42:40
G01     68.2           32.6                7.7 +/-    1.12      12.8 +/-    1.12  0.090 / 0.270
G07     138.7          29.2               11.2 +/-    1.31      20.0 +/-    1.31  0.080 / 0.260
G11     52.1           29.1                8.1 +/-    1.60      14.4 +/-    1.60  0.030 / 0.040
G13     271.5          37.3               11.1 +/-    3.05      16.9 +/-    3.05  0.030 / 0.030
G15     302.3          14.7                6.6 +/-    2.17      16.4 +/-    2.17  0.070 / 0.120
G17     237.3          70.0               10.9 +/-    0.31      11.6 +/-    0.31  0.060 / 0.100
G18     47.3           17.0                7.9 +/-    2.84      18.6 +/-    2.84  0.030 / 0.030
G19     225.8          41.5               12.2 +/-    1.94      17.3 +/-    1.94  0.030 / 0.030
G28     23.4           58.8                8.6 +/-    2.07       9.9 +/-    2.07  0.070 / 0.090
G30     137.8          60.0               11.4 +/-    0.49      13.0 +/-    0.49  0.080 / 0.120