PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-23:12:50
G08     311.8          17.1                8.8 +/-    2.03      20.9 +/-    2.03  0.030 / 0.040
G10     337.7          60.9                9.1 +/-    0.75      10.3 +/-    0.75  0.040 / 0.060
G14     218.3          30.1               16.0 +/-    1.09      28.0 +/-    1.09  0.090 / 0.220
G20     40.8           59.5               10.9 +/-    0.39      12.5 +/-    0.39  0.130 / 0.200
G21     135.5          56.9               12.7 +/-    1.02      14.9 +/-    1.02  0.070 / 0.090
G24     73.8           30.4               10.9 +/-    0.56      18.9 +/-    0.56  0.060 / 0.080
G27     273.9          37.6               12.4 +/-    0.96      18.8 +/-    0.96  0.120 / 0.250
G32     223.6          53.4               14.2 +/-    1.06      17.3 +/-    1.06  0.110 / 0.200