PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-23:58:00
G01     53.7           27.7               12.9 +/-    2.41      23.6 +/-    2.41  0.100 / 0.140
G06     179.2          20.6               -8.7 +/-   46.30     -18.8 +/-   46.30  0.090 / 0.130
G07     145.0          16.7               18.6 +/-    1.88      44.3 +/-    1.88  0.040 / 0.050
G11     46.6           20.6               12.4 +/-    2.52      26.8 +/-    2.52  0.040 / 0.040
G13     255.6          32.4               16.6 +/-    2.30      27.7 +/-    2.30  0.030 / 0.030
G15     287.1          16.4               16.5 +/-    1.08      39.6 +/-    1.08  0.030 / 0.040
G17     277.7          76.8               16.3 +/-    0.65      16.7 +/-    0.65  0.070 / 0.050
G19     240.6          56.3               17.7 +/-    2.42      20.8 +/-    2.42  0.070 / 0.070
G28     47.0           54.1               15.9 +/-    1.16      19.1 +/-    1.16  0.130 / 0.230
G30     146.9          42.7               18.9 +/-    0.73      26.4 +/-    0.73  0.370 / 0.230