PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/16-16:57:20
G10     302.9          54.3                8.1 +/-    1.09       9.7 +/-    1.09  0.060 / 0.070
G15     45.5           23.5                5.7 +/-    0.72      11.5 +/-    0.72  0.060 / 0.070
G20     4.6            64.7                7.0 +/-    0.82       7.7 +/-    0.82  0.040 / 0.040
G21     102.7          72.5                9.5 +/-    0.43       9.9 +/-    0.43  0.040 / 0.040
G24     97.2           27.5                9.6 +/-    0.60      17.7 +/-    0.60  0.040 / 0.040
G27     298.4          35.4               10.0 +/-    1.65      15.7 +/-    1.65  0.030 / 0.040
G32     210.6          35.5               10.5 +/-    0.90      16.4 +/-    0.90  0.080 / 0.150