PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-07:28:00
G07     45.6           69.3                6.1 +/-    0.50       6.5 +/-    0.50  0.040 / 0.040
G08     55.2           44.3                4.5 +/-    0.95       6.1 +/-    0.95  0.030 / 0.040
G09     177.3          39.5                8.2 +/-    0.78      12.0 +/-    0.78  0.030 / 0.040
G11     124.2          33.9                7.5 +/-    0.92      12.1 +/-    0.92  0.030 / 0.040
G18     106.5          14.7                6.3 +/-    1.10      15.7 +/-    1.10  0.210 / 0.360
G23     160.1          10.4                5.6 +/-    1.94      15.5 +/-    1.94  0.230 / 0.380
G27     37.8           10.6                4.3 +/-    3.21      12.0 +/-    3.21  0.250 / 0.460
G28     263.7          44.5                4.5 +/-    1.15       6.1 +/-    1.15  0.270 / 0.300
G30     326.1          56.0                4.1 +/-    0.86       4.8 +/-    0.86  0.100 / 0.270