PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-15:28:10
G02     212.6          51.0               12.2 +/-    1.12      15.2 +/-    1.12  0.060 / 0.070
G06     72.1           76.4               10.4 +/-    0.44      10.7 +/-    0.44  0.070 / 0.080
G12     318.1          35.8                9.3 +/-    1.20      14.6 +/-    1.20  0.060 / 0.100
G17     53.8           34.3                8.3 +/-    0.56      13.4 +/-    0.56  0.070 / 0.100
G19     26.9           55.7                9.7 +/-    0.64      11.5 +/-    0.64  0.030 / 0.030
G24     270.9          43.0                9.1 +/-    1.61      12.6 +/-    1.61  0.030 / 0.030
G28     118.4          18.2               10.8 +/-    0.91      24.9 +/-    0.91  0.040 / 0.040