PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-17:57:40
G02     202.6          29.0               13.1 +/-    1.47      23.5 +/-    1.47  0.030 / 0.040
G06     161.1          65.8               11.9 +/-    0.28      12.9 +/-    0.28  0.030 / 0.030
G12     306.1          14.7               10.9 +/-    2.00      27.3 +/-    2.00  0.070 / 0.090
G17     31.5           52.8               10.7 +/-    0.99      13.0 +/-    0.99  0.080 / 0.090
G19     343.3          68.2               10.8 +/-    0.62      11.5 +/-    0.62  0.100 / 0.240
G24     301.4          36.7               12.3 +/-    1.94      18.9 +/-    1.94  0.080 / 0.250
G28     98.2           34.0               11.9 +/-    1.39      19.2 +/-    1.39  0.030 / 0.040