PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-17:43:10
G01     75.2           33.3               11.4 +/-    1.01      18.7 +/-    1.01  0.030 / 0.040
G07     135.2          34.7               12.9 +/-    1.30      20.6 +/-    1.30  0.040 / 0.070
G11     56.6           33.4                9.9 +/-    0.54      16.1 +/-    0.54  0.040 / 0.080
G13     279.2          37.8               12.8 +/-    0.90      19.3 +/-    0.90  0.050 / 0.090
G15     306.8          13.7                8.8 +/-    1.02      22.6 +/-    1.02  0.050 / 0.120
G17     227.3          63.7               14.3 +/-    0.96      15.7 +/-    0.96  0.050 / 0.100
G18     52.1           20.0                9.2 +/-    0.78      20.2 +/-    0.78  0.100 / 0.170
G19     221.6          36.5               14.6 +/-    1.00      22.6 +/-    1.00  0.070 / 0.160
G28     13.1           60.1               10.3 +/-    0.66      11.7 +/-    0.66  0.030 / 0.050
G30     131.2          65.3               12.3 +/-    0.67      13.4 +/-    0.67  0.030 / 0.050