PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-01:42:40
G02     5.2            73.8               11.3 +/-    0.33      11.7 +/-    0.33  0.030 / 0.030
G05     160.0          40.1               15.8 +/-    1.31      22.9 +/-    1.31  0.030 / 0.030
G06     43.3           34.9                9.6 +/-    0.46      15.2 +/-    0.46  0.040 / 0.070
G12     298.0          76.2               10.7 +/-    0.66      10.9 +/-    0.66  0.040 / 0.070
G17     89.1           11.7               11.6 +/-    1.51      31.1 +/-    1.51  0.080 / 0.120
G19     79.8           24.8               11.9 +/-    1.25      23.4 +/-    1.25  0.060 / 0.100
G24     224.2          18.8               13.6 +/-    3.23      30.9 +/-    3.23  0.130 / 0.300
G25     316.2          33.2               10.1 +/-    1.10      16.6 +/-    1.10  0.140 / 0.420
G29     290.2          11.7               10.0 +/-    2.36      27.0 +/-    2.36  0.030 / 0.030