PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/01-00:12:30
G02     226.7          70.6               11.2 +/-    1.23      11.8 +/-    1.23  0.050 / 0.070
G05     173.5          11.0                4.2 +/-   36.95      11.4 +/-   36.95  0.030 / 0.060
G06     44.0           65.3                9.1 +/-    0.41       9.9 +/-    0.41  0.170 / 0.260
G12     320.9          44.9               10.1 +/-    1.20      13.6 +/-    1.20  0.130 / 0.250
G17     63.0           30.0                9.3 +/-    0.75      16.2 +/-    0.75  0.060 / 0.100
G19     48.8           44.0                9.9 +/-    0.78      13.5 +/-    0.78  0.060 / 0.100
G24     253.4          38.4               11.9 +/-    0.66      17.8 +/-    0.66  0.030 / 0.040