PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/21-00:27:50
G08     312.2          18.0               10.0 +/-    1.73      23.2 +/-    1.73  0.080 / 0.080
G10     323.9          58.7               11.0 +/-    0.65      12.7 +/-    0.65  0.090 / 0.090
G14     215.9          25.6               14.7 +/-    1.95      28.4 +/-    1.95  0.050 / 0.050
G15     46.2           17.5                8.3 +/-    0.64      19.5 +/-    0.64  0.040 / 0.040
G20     313.1          54.5               10.4 +/-    0.33      12.4 +/-    0.33  0.080 / 0.260
G21     129.1          62.5               13.1 +/-    0.93      14.6 +/-    0.93  0.080 / 0.260
G24     77.3           29.4               11.4 +/-    0.67      20.3 +/-    0.67  0.090 / 0.190
G27     281.1          37.7               11.8 +/-    1.63      17.9 +/-    1.63  0.090 / 0.160
G32     219.4          49.9               14.9 +/-    0.91      18.8 +/-    0.91  0.060 / 0.080