PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/09-00:27:50
G01     66.8           32.4                8.8 +/-    1.49      14.8 +/-    1.49  0.040 / 0.060
G07     139.4          28.2               11.1 +/-    1.32      20.2 +/-    1.32  0.040 / 0.040
G11     53.1           30.7                7.4 +/-    0.75      12.9 +/-    0.75  0.060 / 0.080
G13     270.8          36.7                9.4 +/-    2.38      14.5 +/-    2.38  0.040 / 0.060
G15     298.8          16.2                7.8 +/-    2.60      18.8 +/-    2.60  0.030 / 0.030
G17     239.0          69.4               10.5 +/-    0.51      11.1 +/-    0.51  0.030 / 0.030
G19     227.1          45.3               10.7 +/-    2.14      14.4 +/-    2.14  0.080 / 0.120
G28     26.7           58.2               11.8 +/-    1.03      13.6 +/-    1.03  0.070 / 0.120
G30     138.4          54.7               11.1 +/-    0.65      13.2 +/-    0.65  0.060 / 0.110