PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-15:58:00
G02     85.6           12.0                9.4 +/-    1.62      25.1 +/-    1.62  0.050 / 0.070
G05     44.5           33.7                6.1 +/-    0.72       9.9 +/-    0.72  0.040 / 0.080
G13     94.2           33.2               10.0 +/-    0.72      16.4 +/-    0.72  0.160 / 0.320
G15     141.1          41.1               10.2 +/-    1.28      14.6 +/-    1.28  0.170 / 0.320
G20     236.5          26.8                9.9 +/-    1.40      18.7 +/-    1.40  0.120 / 0.220
G21     299.4          36.7                8.6 +/-    0.96      13.2 +/-    0.96  0.100 / 0.250
G25     208.0          24.5                7.8 +/-    3.30      15.3 +/-    3.30  0.070 / 0.120
G26     302.9          18.7                8.5 +/-    1.61      19.2 +/-    1.61  0.080 / 0.120
G29     37.9           86.6                8.1 +/-    0.80       8.1 +/-    0.80  0.030 / 0.030