PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-15:13:00
G08     319.5          12.5                3.1 +/-    1.76       8.2 +/-    1.76  0.080 / 0.080
G10     310.1          56.2                6.4 +/-    1.31       7.6 +/-    1.31  0.060 / 0.070
G14     212.2          13.7                4.0 +/-    2.48      10.3 +/-    2.48  0.180 / 0.600
G15     45.3           18.7                5.0 +/-    2.27      11.4 +/-    2.27  0.180 / 0.390
G20     16.2           63.5                6.7 +/-    0.49       7.4 +/-    0.49  0.070 / 0.060
G21     114.2          68.5                7.8 +/-    0.39       8.3 +/-    0.39  0.080 / 0.060
G24     92.1           28.9                9.4 +/-    1.25      16.8 +/-    1.25  0.140 / 0.260
G27     293.1          37.0                2.7 +/-    1.31       4.2 +/-    1.31  0.140 / 0.260
G32     212.6          40.1                7.7 +/-    1.11      11.2 +/-    1.11  0.030 / 0.040