PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/10-13:28:00
G02     247.1          75.2                5.3 +/-    0.68       5.4 +/-    0.68  0.080 / 0.170
G05     173.7          16.1                7.6 +/-    0.91      18.5 +/-    0.91  0.080 / 0.190
G06     40.1           54.8                3.8 +/-    0.45       4.5 +/-    0.45  0.090 / 0.100
G12     321.9          57.1                2.4 +/-    0.92       2.8 +/-    0.92  0.090 / 0.120
G17     74.2           18.8                5.0 +/-    0.80      11.4 +/-    0.80  0.040 / 0.040
G19     56.9           40.1                5.2 +/-    0.49       7.6 +/-    0.49  0.030 / 0.050
G24     238.5          32.6                5.6 +/-    1.35       9.4 +/-    1.35  0.040 / 0.040
G25     317.0          17.7                4.0 +/-    1.32       9.3 +/-    1.32  0.040 / 0.040