PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-04:27:50
G01     268.9          40.7                6.5 +/-    2.01       9.3 +/-    2.01  0.120 / 0.130
G03     315.7          28.2                5.8 +/-    1.88      10.5 +/-    1.88  0.110 / 0.150
G10     130.4          17.0                6.3 +/-    1.44      14.9 +/-    1.44  0.050 / 0.060
G11     247.2          20.5                9.2 +/-    3.10      20.0 +/-    3.10  0.070 / 0.060
G14     46.5           48.0                5.1 +/-    0.85       6.6 +/-    0.85  0.050 / 0.040
G22     313.9          52.5                6.2 +/-    0.72       7.5 +/-    0.72  0.040 / 0.040
G25     48.3           14.5                4.2 +/-    1.89      10.5 +/-    1.89  0.140 / 0.200
G26     149.7          24.7                9.8 +/-    1.78      19.3 +/-    1.78  0.130 / 0.250
G31     54.0           74.7                5.4 +/-    0.37       5.5 +/-    0.37  0.040 / 0.020
G32     63.9           33.7                5.3 +/-    2.74       8.7 +/-    2.74  0.030 / 0.030