PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-17:12:30
G02     218.7          60.1               10.0 +/-    1.31      11.4 +/-    1.31  0.080 / 0.080
G06     51.1           70.0                9.9 +/-    0.45      10.5 +/-    0.45  0.060 / 0.080
G12     320.6          42.5                9.8 +/-    1.05      13.7 +/-    1.05  0.040 / 0.050
G17     60.0           30.0                8.5 +/-    2.67      14.8 +/-    2.67  0.040 / 0.050
G19     38.5           50.2                9.4 +/-    1.90      11.8 +/-    1.90  0.040 / 0.020
G24     260.0          41.2               11.9 +/-    4.51      17.0 +/-    4.51  0.030 / 0.020
G28     124.1          12.0                8.9 +/-    3.33      23.9 +/-    3.33  0.050 / 0.040