PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-20:13:00
G01     38.5           11.6               11.3 +/-    3.61      30.3 +/-    3.61  0.080 / 0.140
G02     199.6          14.1               17.7 +/-    2.45      45.0 +/-    2.45  0.110 / 0.140
G06     172.2          47.0               14.6 +/-    0.76      19.2 +/-    0.76  0.090 / 0.170
G13     232.6          17.8               16.4 +/-    2.05      38.0 +/-    2.05  0.170 / 0.180
G17     7.4            67.1               12.7 +/-    0.40      13.7 +/-    0.40  0.600 / 0.300
G19     293.0          70.1               13.7 +/-    0.47      14.5 +/-    0.47  0.480 / 0.320
G24     313.8          24.7               11.6 +/-    1.67      22.8 +/-    1.67  0.050 / 0.050
G28     79.9           43.5               12.8 +/-    1.03      17.6 +/-    1.03  0.040 / 0.040
G30     156.0          20.9               13.0 +/-    1.69      27.9 +/-    1.69  0.030 / 0.030