PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/09-21:12:30
G02     217.8          61.9               12.9 +/-    0.67      14.4 +/-    0.67  0.060 / 0.080
G06     52.6           71.6               10.9 +/-    0.49      11.5 +/-    0.49  0.060 / 0.100
G12     319.6          39.3                9.9 +/-    0.71      14.6 +/-    0.71  0.030 / 0.070
G17     57.9           32.8                8.5 +/-    0.50      14.1 +/-    0.50  0.030 / 0.070
G19     39.3           49.5                9.0 +/-    0.47      11.4 +/-    0.47  0.050 / 0.090
G24     262.0          41.2               13.1 +/-    1.82      18.6 +/-    1.82  0.050 / 0.060
G28     123.9          12.1               12.3 +/-    3.15      32.8 +/-    3.15  0.050 / 0.040