PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-15:12:50
G01     50.7           25.6                8.2 +/-    1.30      15.7 +/-    1.30  0.080 / 0.180
G06     178.0          24.3               10.5 +/-    1.61      20.9 +/-    1.61  0.080 / 0.150
G07     145.6          10.5                8.4 +/-    2.52      23.3 +/-    2.52  0.040 / 0.060
G11     44.2           13.3                5.1 +/-    1.54      13.2 +/-    1.54  0.040 / 0.070
G13     253.7          30.8               10.7 +/-    1.13      18.4 +/-    1.13  0.200 / 0.280
G15     287.3          15.4                6.4 +/-    2.89      15.8 +/-    2.89  0.150 / 0.280
G17     324.6          78.9                8.8 +/-    0.64       9.0 +/-    0.64  0.030 / 0.030
G19     247.0          61.5               10.5 +/-    0.55      11.8 +/-    0.55  0.030 / 0.030
G28     51.5           53.1                6.5 +/-    0.63       7.9 +/-    0.63  0.070 / 0.130
G30     149.4          44.4                8.1 +/-    1.73      11.0 +/-    1.73  0.060 / 0.100