PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/20-23:27:50
G01     45.8           22.0                7.7 +/-    2.81      16.1 +/-    2.81  0.200 / 0.300
G06     179.4          26.5               11.3 +/-    1.53      21.3 +/-    1.53  0.130 / 0.320
G11     43.3           9.7                 7.1 +/-    3.15      20.0 +/-    3.15  0.040 / 0.030
G13     244.4          27.8                9.7 +/-    2.01      17.8 +/-    2.01  0.030 / 0.040
G15     278.1          14.7                6.6 +/-    1.35      16.5 +/-    1.35  0.170 / 0.230
G17     345.2          76.0                8.9 +/-    0.50       9.2 +/-    0.50  0.120 / 0.170
G19     255.2          63.8                9.6 +/-    0.92      10.6 +/-    0.92  0.060 / 0.040
G24     318.0          13.9                7.5 +/-    1.59      19.3 +/-    1.59  0.030 / 0.060
G28     55.3           53.3                8.4 +/-    0.81      10.1 +/-    0.81  0.060 / 0.090
G30     151.8          35.5                9.8 +/-    1.45      15.4 +/-    1.45  0.090 / 0.080