PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-07:42:50
G07     44.1           69.3                5.2 +/-    1.12       5.6 +/-    1.12  0.040 / 0.050
G08     56.0           44.9                3.8 +/-    0.49       5.1 +/-    0.49  0.030 / 0.050
G09     177.5          40.3                7.0 +/-    1.41      10.1 +/-    1.41  0.020 / 0.040
G11     124.7          33.5                6.7 +/-    1.18      10.9 +/-    1.18  0.030 / 0.040
G18     107.1          14.4                6.2 +/-    2.29      15.6 +/-    2.29  0.150 / 0.280
G23     160.1          10.8                5.0 +/-    4.28      13.6 +/-    4.28  0.160 / 0.400
G27     37.9           11.1                3.0 +/-    1.64       8.2 +/-    1.64  0.220 / 0.330
G28     263.0          44.2                4.2 +/-    1.09       5.7 +/-    1.09  0.260 / 0.380
G30     325.7          55.6                3.7 +/-    0.94       4.4 +/-    0.94  0.060 / 0.070