PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-13:43:00
G02     201.3          18.4                7.1 +/-    2.13      16.1 +/-    2.13  0.120 / 0.120
G06     168.7          54.9                7.9 +/-    0.58       9.4 +/-    0.58  0.090 / 0.120
G13     225.5          13.1                7.6 +/-    4.47      19.8 +/-    4.47  0.030 / 0.040
G17     17.3           62.0                6.8 +/-    0.92       7.6 +/-    0.92  0.040 / 0.030
G19     329.7          71.3                6.2 +/-    0.88       6.5 +/-    0.88  0.040 / 0.030
G24     309.9          29.0                6.7 +/-    1.26      12.0 +/-    1.26  0.040 / 0.030
G28     83.4           44.9                8.0 +/-    0.85      10.8 +/-    0.85  0.180 / 0.420
G30     157.3          14.5                6.3 +/-    3.42      15.8 +/-    3.42  0.170 / 0.270