PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-15:57:50
G08     305.1          21.3                5.0 +/-    2.20      10.6 +/-    2.20  0.070 / 0.100
G10     345.2          61.6                5.7 +/-    0.58       6.4 +/-    0.58  0.090 / 0.090
G14     220.1          30.7                8.1 +/-    2.04      14.1 +/-    2.04  0.070 / 0.190
G20     50.9           56.1                6.2 +/-    0.39       7.3 +/-    0.39  0.070 / 0.160
G21     138.4          51.9                9.3 +/-    0.78      11.4 +/-    0.78  0.050 / 0.060
G24     70.4           30.2                5.5 +/-    0.58       9.6 +/-    0.58  0.040 / 0.060
G27     269.0          37.1                8.6 +/-    1.06      13.1 +/-    1.06  0.050 / 0.110
G32     226.7          58.5                8.8 +/-    0.97      10.1 +/-    0.97  0.060 / 0.100