PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-04:42:30
G01     269.7          40.8                5.6 +/-    2.13       8.1 +/-    2.13  0.070 / 0.070
G03     315.6          27.7                3.3 +/-    2.25       6.1 +/-    2.25  0.070 / 0.060
G10     130.0          17.5                4.5 +/-    1.69      10.5 +/-    1.69  0.040 / 0.040
G11     247.7          20.8                8.2 +/-    2.59      17.6 +/-    2.59  0.040 / 0.040
G14     45.8           48.4                3.3 +/-    1.07       4.2 +/-    1.07  0.040 / 0.070
G22     314.0          52.1                3.9 +/-    0.76       4.8 +/-    0.76  0.050 / 0.070
G25     48.7           14.6                2.7 +/-    3.51       6.7 +/-    3.51  0.040 / 0.060
G26     149.9          24.2                6.9 +/-    2.40      13.8 +/-    2.40  0.040 / 0.050
G31     55.3           75.1                4.0 +/-    0.45       4.2 +/-    0.45  0.090 / 0.140
G32     63.4           33.9                5.1 +/-    1.85       8.2 +/-    1.85  0.180 / 0.210