PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-21:12:50
G01     102.6          27.2               13.2 +/-    0.61      24.5 +/-    0.61  0.040 / 0.050
G07     114.9          49.9               13.7 +/-    0.38      17.3 +/-    0.38  0.050 / 0.050
G08     41.5           15.7                8.4 +/-    2.60      20.6 +/-    2.60  0.040 / 0.060
G09     174.5          11.1               13.3 +/-    1.73      36.3 +/-    1.73  0.040 / 0.040
G11     81.3           42.5               13.3 +/-    2.12      18.6 +/-    2.12  0.230 / 0.420
G13     305.9          31.7               11.1 +/-    1.28      18.8 +/-    1.28  0.240 / 0.440
G17     206.5          43.3               14.1 +/-    0.57      19.5 +/-    0.57  0.070 / 0.160
G18     73.1           23.8               11.7 +/-    1.27      23.5 +/-    1.27  0.060 / 0.180
G28     317.6          60.3               11.3 +/-    0.97      12.8 +/-    0.97  0.030 / 0.030
G30     48.6           79.6               12.6 +/-    0.39      12.8 +/-    0.39  0.030 / 0.030