PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-19:58:00
G05     48.7           19.4               12.3 +/-    0.65      27.5 +/-    0.65  0.050 / 0.070
G10     237.0          12.4               28.4 +/-    4.01      75.3 +/-    4.01  0.060 / 0.070
G13     76.1           37.4               15.1 +/-    0.48      22.9 +/-    0.48  0.150 / 0.700
G15     122.3          52.8               19.1 +/-    1.26      23.3 +/-    1.26  0.200 / 0.660
G16     316.5          10.5                5.5 +/-   35.95      15.1 +/-   35.95  0.130 / 0.250
G18     246.7          43.3               26.2 +/-    1.04      36.2 +/-    1.04  0.170 / 0.250
G20     28.8           65.4               18.1 +/-    0.54      19.7 +/-    0.54  0.040 / 0.030
G21     315.3          49.2               22.0 +/-    1.30      28.1 +/-    1.30  0.040 / 0.040
G26     290.4          19.0               23.2 +/-    1.13      52.3 +/-    1.13  0.060 / 0.160
G29     153.9          66.0               22.9 +/-    1.39      24.8 +/-    1.39  0.060 / 0.150