PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-18:57:50
G02     221.8          64.2               15.4 +/-    0.99      16.9 +/-    0.99  0.030 / 0.070
G06     47.2           67.4               13.2 +/-    0.52      14.2 +/-    0.52  0.040 / 0.060
G12     321.1          44.4               12.8 +/-    2.01      17.4 +/-    2.01  0.060 / 0.090
G17     61.9           29.0               10.8 +/-    0.90      19.2 +/-    0.90  0.050 / 0.080
G19     42.8           47.8               12.0 +/-    0.69      15.6 +/-    0.69  0.040 / 0.060
G24     256.4          40.0               16.3 +/-    0.99      23.7 +/-    0.99  0.040 / 0.070