PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/28-04:28:10
G07     358.0          65.0                4.6 +/-    1.37       5.0 +/-    1.37  0.050 / 0.130
G08     74.8           51.1                5.5 +/-    1.26       6.9 +/-    1.26  0.050 / 0.080
G09     181.9          59.2                8.0 +/-    0.46       9.2 +/-    0.46  0.030 / 0.030
G11     136.6          21.3                7.7 +/-    1.85      16.4 +/-    1.85  0.030 / 0.030
G23     159.3          28.9                7.9 +/-    1.41      14.1 +/-    1.41  0.030 / 0.040
G27     44.2           22.4                3.5 +/-    2.43       7.2 +/-    2.43  0.040 / 0.040
G28     250.0          40.4                5.9 +/-    1.78       8.5 +/-    1.78  0.040 / 0.030
G30     313.7          45.1                3.6 +/-    0.90       4.9 +/-    0.90  0.040 / 0.030