PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-14:28:10
G02     216.0          59.8               15.2 +/-    1.02      17.3 +/-    1.02  0.100 / 0.100
G06     59.4           75.8               13.9 +/-    0.55      14.3 +/-    0.55  0.080 / 0.070
G12     318.7          35.9                9.5 +/-    1.86      14.9 +/-    1.86  0.050 / 0.080
G17     59.5           30.0               11.0 +/-    1.72      19.2 +/-    1.72  0.080 / 0.070
G19     42.2           47.4               11.1 +/-    0.83      14.5 +/-    0.83  0.060 / 0.070
G24     267.3          41.3               11.8 +/-    1.21      16.8 +/-    1.21  0.070 / 0.090
G28     123.4          12.7               11.2 +/-    1.80      29.6 +/-    1.80  0.030 / 0.030