PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-21:13:00
G01     221.7          14.9               11.1 +/-    2.99      27.7 +/-    2.99  0.040 / 0.030
G03     284.2          68.3                8.3 +/-    0.54       8.9 +/-    0.54  0.040 / 0.040
G09     296.9          13.6                7.8 +/-    1.59      20.1 +/-    1.59  0.130 / 0.170
G14     86.3           26.3                8.3 +/-    1.71      15.7 +/-    1.71  0.120 / 0.230
G16     141.5          47.4               11.0 +/-    1.30      14.4 +/-    1.30  0.060 / 0.090
G22     214.6          68.6                8.5 +/-    0.69       9.1 +/-    0.69  0.080 / 0.100
G23     308.8          38.6                7.6 +/-    1.10      11.3 +/-    1.10  0.030 / 0.030
G26     93.5           54.5                7.6 +/-    1.33       9.1 +/-    1.33  0.030 / 0.030
G31     46.3           30.6                6.3 +/-    0.97      10.9 +/-    0.97  0.050 / 0.070