PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/18-01:12:40
G01     38.3           11.2                8.4 +/-    3.95      22.7 +/-    3.95  0.270 / 0.300
G02     199.0          16.1               13.2 +/-    3.73      32.0 +/-    3.73  0.210 / 0.220
G06     174.1          46.0               11.6 +/-    0.56      15.4 +/-    0.56  0.030 / 0.030
G13     232.6          17.4               10.5 +/-    2.60      24.7 +/-    2.60  0.030 / 0.030
G17     7.4            67.0                8.4 +/-    0.30       9.1 +/-    0.30  0.050 / 0.040
G19     299.9          71.1                8.0 +/-    0.70       8.4 +/-    0.70  0.040 / 0.060
G24     314.0          24.3                7.4 +/-    1.45      14.7 +/-    1.45  0.040 / 0.050
G28     80.9           42.9                8.5 +/-    1.02      11.9 +/-    1.02  0.050 / 0.070
G30     155.3          18.1               11.9 +/-    2.06      27.4 +/-    2.06  0.110 / 0.120