PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-20:43:00
G01     38.2           11.2               10.5 +/-    3.43      28.5 +/-    3.43  0.090 / 0.160
G02     199.5          14.9               17.8 +/-    2.62      44.4 +/-    2.62  0.090 / 0.200
G06     172.1          47.6               12.6 +/-    1.16      16.3 +/-    1.16  0.100 / 0.150
G13     232.2          17.4               13.4 +/-    1.85      31.4 +/-    1.85  0.090 / 0.160
G17     7.7            66.9               11.7 +/-    0.84      12.6 +/-    0.84  0.120 / 0.380
G19     295.5          70.3               11.9 +/-    0.39      12.6 +/-    0.39  0.120 / 0.270
G24     313.6          25.1               11.1 +/-    1.96      21.6 +/-    1.96  0.030 / 0.040
G28     80.6           43.1               11.4 +/-    0.60      15.8 +/-    0.60  0.040 / 0.040
G30     156.0          20.2               16.1 +/-    3.60      35.3 +/-    3.60  0.050 / 0.080