PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-07:12:30
G02     216.3          63.5                9.5 +/-    0.65      10.5 +/-    0.65  0.120 / 0.550
G06     61.3           77.9                4.8 +/-    0.70       4.9 +/-    0.70  0.130 / 0.530
G12     318.6          35.5                5.5 +/-    1.94       8.6 +/-    1.94  0.040 / 0.090
G17     58.5           31.7                4.0 +/-    0.73       6.7 +/-    0.73  0.050 / 0.070
G19     41.9           47.7                4.3 +/-    1.21       5.5 +/-    1.21  0.080 / 0.070
G24     265.4          41.2               10.3 +/-    0.91      14.7 +/-    0.91  0.080 / 0.080
G28     123.8          12.0                6.3 +/-    1.28      16.9 +/-    1.28  0.060 / 0.090