PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-18:13:00
G02     56.2           36.1                9.3 +/-    1.53      14.4 +/-    1.53  0.110 / 0.380
G05     61.8           63.8                7.9 +/-    0.46       8.7 +/-    0.46  0.120 / 0.310
G12     184.4          34.9               10.9 +/-    0.67      17.2 +/-    0.67  0.140 / 0.330
G13     128.1          13.7               12.0 +/-    2.55      30.8 +/-    2.55  0.200 / 0.350
G15     165.3          10.8                1.3 +/-   27.03       3.7 +/-   27.03  0.120 / 0.320
G21     269.9          15.3                7.8 +/-    2.66      19.4 +/-    2.66  0.170 / 0.370
G25     241.0          53.4               10.0 +/-    3.78      12.2 +/-    3.78  0.070 / 0.090
G29     327.4          52.5                9.0 +/-    0.53      11.0 +/-    0.53  0.060 / 0.070