PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-04:27:50
G01     282.3          41.4                2.8 +/-    2.18       4.0 +/-    2.18  0.040 / 0.050
G03     313.7          20.8                4.4 +/-    1.26       9.4 +/-    1.26  0.040 / 0.050
G10     124.5          23.3                6.1 +/-    1.03      12.4 +/-    1.03  0.080 / 0.080
G11     257.3          23.7               10.7 +/-    3.00      21.5 +/-    3.00  0.070 / 0.080
G14     31.5           55.8                5.9 +/-    1.25       7.0 +/-    1.25  0.070 / 0.150
G18     243.4          44.3               10.2 +/-    5.43      13.9 +/-    5.43  0.130 / 0.160
G22     314.4          43.4                6.3 +/-    0.77       8.7 +/-    0.77  0.050 / 0.050
G25     59.5           18.0                4.9 +/-    2.41      11.3 +/-    2.41  0.050 / 0.050
G31     78.8           77.7                6.8 +/-    0.39       6.9 +/-    0.39  0.070 / 0.110
G32     58.1           36.1                5.7 +/-    0.95       8.8 +/-    0.95  0.140 / 0.100