PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-10:12:50
G01     75.3           32.5                5.1 +/-    1.12       8.5 +/-    1.12  0.060 / 0.080
G07     133.9          33.8                6.1 +/-    1.02       9.9 +/-    1.02  0.040 / 0.080
G11     58.0           35.8                3.5 +/-    0.92       5.5 +/-    0.92  0.060 / 0.070
G13     279.7          39.0                6.1 +/-    1.65       9.0 +/-    1.65  0.040 / 0.040
G15     307.5          13.5                1.7 +/-    2.15       4.4 +/-    2.15  0.100 / 0.120
G17     223.6          61.9                5.7 +/-    1.33       6.4 +/-    1.33  0.110 / 0.100
G18     52.5           20.3                3.4 +/-    3.29       7.5 +/-    3.29  0.100 / 0.200
G19     219.5          39.3                5.0 +/-    1.43       7.3 +/-    1.43  0.130 / 0.240
G28     355.0          61.5                4.4 +/-    1.09       5.0 +/-    1.09  0.030 / 0.030
G30     129.2          68.4                5.7 +/-    0.71       6.1 +/-    0.71  0.030 / 0.030