PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/09-19:43:00
G02     241.2          74.8               10.8 +/-    0.75      11.1 +/-    0.75  0.100 / 0.140
G05     171.5          16.6               14.5 +/-    1.85      34.7 +/-    1.85  0.070 / 0.110
G06     40.8           56.4                9.8 +/-    0.48      11.5 +/-    0.48  0.050 / 0.060
G12     322.4          55.3                8.9 +/-    1.11      10.6 +/-    1.11  0.040 / 0.050
G17     71.0           22.5                9.0 +/-    1.20      18.6 +/-    1.20  0.040 / 0.040
G19     55.3           40.7               10.1 +/-    0.99      14.6 +/-    0.99  0.040 / 0.040
G24     243.6          34.5               14.5 +/-    0.80      23.3 +/-    0.80  0.090 / 0.110
G25     316.7          12.7                8.1 +/-    2.22      21.2 +/-    2.22  0.090 / 0.110