PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-19:28:10
G02     215.7          58.2               13.3 +/-    1.01      15.4 +/-    1.01  0.050 / 0.060
G06     57.9           73.5               11.2 +/-    0.37      11.6 +/-    0.37  0.040 / 0.080
G12     319.1          37.9                9.9 +/-    1.84      14.9 +/-    1.84  0.050 / 0.080
G17     56.3           33.5               10.5 +/-    1.47      17.1 +/-    1.47  0.060 / 0.070
G19     35.3           51.7               11.8 +/-    1.29      14.6 +/-    1.29  0.070 / 0.080
G24     265.1          42.0               12.8 +/-    2.46      18.1 +/-    2.46  0.060 / 0.090
G28     122.1          14.3               12.2 +/-    2.53      30.9 +/-    2.53  0.050 / 0.040