PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-05:57:50
G01     94.3           30.6                6.1 +/-    1.27      10.6 +/-    1.27  0.080 / 0.110
G07     122.4          46.8                7.5 +/-    0.94       9.8 +/-    0.94  0.080 / 0.090
G11     70.9           40.3                5.9 +/-    1.47       8.5 +/-    1.47  0.040 / 0.040
G13     298.2          35.2                0.3 +/-    1.78       0.5 +/-    1.78  0.050 / 0.040
G17     210.9          52.7                8.1 +/-    0.71       9.8 +/-    0.71  0.030 / 0.030
G19     213.1          21.3                5.8 +/-    2.21      12.4 +/-    2.21  0.020 / 0.020
G28     337.9          61.8                4.2 +/-    0.34       4.7 +/-    0.34  0.040 / 0.040
G30     83.2           79.7                5.8 +/-    0.18       5.9 +/-    0.18  0.040 / 0.040