PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-20:57:40
G05     49.1           16.2                6.7 +/-    1.64      16.1 +/-    1.64  0.140 / 0.240
G10     237.0          15.2               14.6 +/-    1.19      36.3 +/-    1.19  0.210 / 0.270
G13     72.6           35.1                9.6 +/-    1.11      15.2 +/-    1.11  0.030 / 0.030
G15     122.3          53.4               11.2 +/-    0.74      13.5 +/-    0.74  0.030 / 0.040
G16     312.7          13.0                8.1 +/-    1.30      21.2 +/-    1.30  0.060 / 0.070
G20     249.9          38.4               11.5 +/-    1.21      17.1 +/-    1.21  0.050 / 0.070
G21     314.5          47.2               10.3 +/-    0.97      13.4 +/-    0.97  0.080 / 0.120
G25     199.2          10.6               14.7 +/-    4.30      40.5 +/-    4.30  0.070 / 0.120
G26     286.0          20.0                8.0 +/-    1.69      17.6 +/-    1.69  0.130 / 0.380
G29     154.2          70.7               10.6 +/-    0.76      11.2 +/-    0.76  0.180 / 0.350