PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-06:58:00
G01     93.1           31.0                7.1 +/-    1.16      12.2 +/-    1.16  0.040 / 0.050
G07     123.1          46.8                9.8 +/-    0.49      12.9 +/-    0.49  0.040 / 0.040
G11     71.9           40.1                6.6 +/-    0.75       9.5 +/-    0.75  0.040 / 0.040
G13     298.9          34.1                5.6 +/-    2.96       9.0 +/-    2.96  0.030 / 0.040
G17     212.5          52.6                9.5 +/-    0.95      11.6 +/-    0.95  0.040 / 0.040
G19     213.4          26.1                6.3 +/-    1.38      12.1 +/-    1.38  0.040 / 0.040
G28     345.5          61.8                5.6 +/-    0.60       6.3 +/-    0.60  0.080 / 0.080
G30     94.8           76.9                7.7 +/-    0.55       7.8 +/-    0.55  0.070 / 0.090