PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-16:58:00
G01     252.2          35.7                9.7 +/-    2.03      15.2 +/-    2.03  0.040 / 0.040
G03     316.0          46.7                8.5 +/-    1.88      11.2 +/-    1.88  0.040 / 0.040
G11     240.9          13.2               12.1 +/-    3.45      31.5 +/-    3.45  0.030 / 0.040
G14     58.1           42.8                8.6 +/-    0.63      12.0 +/-    0.63  0.040 / 0.050
G22     304.5          67.4               10.0 +/-    1.26      10.7 +/-    1.26  0.130 / 0.310
G23     286.8          20.4               10.7 +/-    1.06      23.2 +/-    1.06  0.120 / 0.300
G25     40.9           11.1                9.4 +/-    3.04      25.5 +/-    3.04  0.040 / 0.100
G26     136.1          37.6               10.7 +/-    0.56      16.2 +/-    0.56  0.040 / 0.100
G31     41.2           58.3                7.9 +/-    0.68       9.1 +/-    0.68  0.060 / 0.100
G32     77.2           22.6                8.5 +/-    0.56      17.5 +/-    0.56  0.070 / 0.120