PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-00:42:50
G07     328.7          56.7                4.2 +/-    0.90       4.9 +/-    0.90  0.040 / 0.040
G08     103.9          49.5                6.9 +/-    0.38       8.8 +/-    0.38  0.040 / 0.050
G09     195.7          78.3                5.9 +/-    0.67       6.0 +/-    0.67  0.090 / 0.290
G11     147.7          10.6                0.4 +/-   22.74       1.1 +/-   22.74  0.120 / 0.240
G16     45.0           12.9                0.8 +/-    0.57       2.2 +/-    0.57  0.040 / 0.060
G23     154.4          50.0                8.5 +/-    0.80      10.7 +/-    0.80  0.040 / 0.080
G27     63.6           36.1                3.6 +/-    0.56       5.6 +/-    0.56  0.100 / 0.270
G28     232.4          22.7                7.8 +/-    1.30      16.1 +/-    1.30  0.100 / 0.330
G30     296.8          30.4                4.5 +/-    1.25       7.9 +/-    1.25  0.100 / 0.120