PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-23:12:30
G10     293.1          50.4               10.2 +/-    2.92      12.8 +/-    2.92  0.060 / 0.100
G15     47.4           34.6                7.9 +/-    0.75      12.7 +/-    0.75  0.050 / 0.090
G20     285.9          39.3                6.8 +/-    0.56      10.0 +/-    0.56  0.050 / 0.040
G21     81.8           76.6               10.3 +/-    0.37      10.6 +/-    0.37  0.060 / 0.040
G24     98.8           25.2               11.7 +/-    0.86      22.8 +/-    0.86  0.080 / 0.120
G27     303.9          32.6                9.7 +/-    1.32      16.1 +/-    1.32  0.080 / 0.120
G29     168.8          11.4               14.4 +/-    2.13      38.9 +/-    2.13  0.060 / 0.060
G32     209.0          30.8               13.0 +/-    1.76      22.4 +/-    1.76  0.060 / 0.070