PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-14:58:10
G07     312.9          49.3               14.1 +/-    0.65      17.9 +/-    0.65  0.040 / 0.040
G08     123.9          44.5               18.1 +/-    1.46      24.5 +/-    1.46  0.040 / 0.050
G09     270.4          82.9               16.5 +/-    0.32      16.6 +/-    0.32  0.070 / 0.050
G16     43.0           17.6               10.8 +/-    2.90      25.3 +/-    2.90  0.080 / 0.050
G23     147.3          53.7               16.4 +/-    0.80      19.8 +/-    0.80  0.070 / 0.120
G27     71.7           36.8               15.0 +/-    1.34      23.0 +/-    1.34  0.150 / 0.170
G28     227.2          17.5               13.7 +/-    5.76      32.1 +/-    5.76  0.040 / 0.050
G30     290.4          25.9               12.7 +/-    1.30      24.4 +/-    1.30  0.040 / 0.050