PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-06:28:00
G01     295.3          38.9                5.4 +/-    2.90       8.0 +/-    2.90  0.040 / 0.060
G03     310.0          11.8                1.0 +/-   19.54       2.7 +/-   19.54  0.040 / 0.040
G10     116.2          32.9                4.9 +/-    0.98       8.1 +/-    0.98  0.060 / 0.020
G11     266.5          28.4               -2.6 +/-   42.26      -4.7 +/-   42.26  0.060 / 0.030
G14     21.0           60.0                3.9 +/-    1.16       4.4 +/-    1.16  0.050 / 0.040
G22     313.1          36.0                5.6 +/-    0.91       8.7 +/-    0.91  0.070 / 0.030
G25     66.4           17.3                4.7 +/-    1.37      11.2 +/-    1.37  0.050 / 0.090
G31     146.2          76.3                7.0 +/-    1.18       7.2 +/-    1.18  0.060 / 0.080
G32     46.5           45.4                2.8 +/-    0.39       3.7 +/-    0.39  0.040 / 0.050