PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-23:12:40
G03     196.5          33.5                7.3 +/-    0.76      11.8 +/-    0.76  0.160 / 0.420
G07     278.7          31.1                7.5 +/-    1.02      12.9 +/-    1.02  0.140 / 0.450
G08     148.0          18.6               10.0 +/-    1.27      22.7 +/-    1.27  0.110 / 0.220
G09     322.6          56.8                5.3 +/-    0.91       6.2 +/-    0.91  0.110 / 0.220
G16     48.8           47.7                5.6 +/-    0.99       7.3 +/-    0.99  0.060 / 0.050
G22     182.3          17.1                7.3 +/-    2.26      17.2 +/-    2.26  0.050 / 0.070
G23     20.9           81.7              -21.0 +/-    0.40     -21.2 +/-    0.40  0.080 / 0.130
G26     43.7           21.6                4.3 +/-    3.00       9.0 +/-    3.00  0.090 / 0.140
G27     112.5          27.1                9.0 +/-    1.64      16.8 +/-    1.64  0.030 / 0.030