PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-19:58:00
G01     49.9           25.4               10.3 +/-    2.63      19.9 +/-    2.63  0.090 / 0.250
G06     177.0          26.1               15.6 +/-    0.81      29.7 +/-    0.81  0.090 / 0.320
G07     146.4          12.6               14.6 +/-    2.30      38.3 +/-    2.30  0.140 / 0.170
G11     44.8           15.6                9.1 +/-    2.20      22.5 +/-    2.20  0.090 / 0.190
G13     250.4          30.2               13.3 +/-    1.27      23.2 +/-    1.27  0.040 / 0.060
G15     284.1          15.5               11.1 +/-    1.73      27.4 +/-    1.73  0.050 / 0.070
G17     300.8          77.7               12.0 +/-    0.42      12.2 +/-    0.42  0.090 / 0.150
G19     246.2          58.5               13.0 +/-    0.64      14.9 +/-    0.64  0.090 / 0.120
G28     53.1           52.7               11.0 +/-    1.10      13.4 +/-    1.10  0.130 / 0.090
G30     149.7          40.5               13.0 +/-    0.94      18.8 +/-    0.94  0.080 / 0.130