PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-10:57:50
G02     201.4          19.4                6.6 +/-    2.95      14.7 +/-    2.95  0.170 / 0.250
G06     169.4          55.6                7.8 +/-    0.88       9.2 +/-    0.88  0.140 / 0.250
G13     226.0          12.4                4.2 +/-    2.88      11.1 +/-    2.88  0.100 / 0.110
G17     25.9           57.2                5.3 +/-    0.43       6.2 +/-    0.43  0.090 / 0.110
G19     313.7          70.1                4.8 +/-    0.80       5.0 +/-    0.80  0.030 / 0.040
G24     307.2          33.2                4.6 +/-    1.50       7.5 +/-    1.50  0.040 / 0.040
G28     88.4           40.1                6.9 +/-    0.64      10.0 +/-    0.64  0.150 / 0.470
G30     157.9          15.0                5.7 +/-    2.72      14.2 +/-    2.72  0.090 / 0.470