PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-04:13:10
G03     220.7          61.6                5.5 +/-    0.96       6.2 +/-    0.96  0.060 / 0.330
G07     254.8          14.1                4.4 +/-    3.59      11.3 +/-    3.59  0.080 / 0.370
G09     311.0          31.4                3.6 +/-    1.95       6.1 +/-    1.95  0.050 / 0.050
G16     101.0          63.5                5.5 +/-    0.79       6.1 +/-    0.79  0.050 / 0.060
G22     191.2          45.8                7.1 +/-    0.72       9.5 +/-    0.72  0.040 / 0.040
G23     326.0          56.0                3.9 +/-    0.50       4.6 +/-    0.50  0.040 / 0.050
G26     56.3           45.2                3.5 +/-    1.00       4.7 +/-    1.00  0.040 / 0.040
G31     57.6           12.3                1.3 +/-    1.80       3.5 +/-    1.80  0.030 / 0.040