PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/26-05:28:00
G07     343.0          61.4                3.6 +/-    0.41       4.0 +/-    0.41  0.060 / 0.080
G08     86.4           51.5                5.8 +/-    0.59       7.1 +/-    0.59  0.080 / 0.080
G09     177.1          64.0                4.4 +/-    0.88       4.8 +/-    0.88  0.050 / 0.110
G11     141.1          17.1                4.3 +/-    2.01      10.2 +/-    2.01  0.060 / 0.090
G23     157.8          38.3                4.2 +/-    0.55       6.3 +/-    0.55  0.040 / 0.040
G27     51.9           30.3                3.1 +/-    0.89       5.4 +/-    0.89  0.030 / 0.030
G28     240.8          32.1                5.0 +/-    2.14       8.4 +/-    2.14  0.050 / 0.080
G30     304.8          37.0                4.3 +/-    1.42       6.6 +/-    1.42  0.070 / 0.070