PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-02:43:00
G01     122.7          13.0                6.6 +/-    2.22      17.2 +/-    2.22  0.030 / 0.040
G07     59.4           69.3                5.3 +/-    0.62       5.6 +/-    0.62  0.040 / 0.040
G08     48.4           36.6                2.4 +/-    0.43       3.7 +/-    0.43  0.140 / 0.460
G09     174.3          29.8                6.7 +/-    1.09      11.7 +/-    1.09  0.110 / 0.570
G11     120.6          37.6                7.7 +/-    1.01      11.7 +/-    1.01  0.070 / 0.110
G13     319.9          15.0                1.4 +/-    1.62       3.6 +/-    1.62  0.080 / 0.120
G17     199.2          17.6                5.1 +/-    0.54      11.9 +/-    0.54  0.030 / 0.030
G28     270.4          47.1                7.5 +/-    1.19       9.9 +/-    1.19  0.030 / 0.040
G30     329.8          59.3                3.6 +/-    0.94       4.1 +/-    0.94  0.070 / 0.090