PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-22:43:00
G01     93.3           31.1               16.0 +/-    1.02      27.4 +/-    1.02  0.070 / 0.110
G07     122.9          48.3               16.1 +/-    0.71      20.8 +/-    0.71  0.070 / 0.130
G08     42.3           13.2               10.7 +/-    0.94      27.9 +/-    0.94  0.080 / 0.130
G11     74.7           42.2               14.3 +/-    0.78      20.1 +/-    0.78  0.080 / 0.110
G13     298.1          34.7               14.8 +/-    1.61      23.7 +/-    1.61  0.040 / 0.060
G17     213.4          47.6               18.9 +/-    0.74      24.6 +/-    0.74  0.030 / 0.060
G18     347.7          -15.4              19.2 +/-    0.70      47.3 +/-    0.70  0.040 / 0.050
G19     213.5          24.4               21.5 +/-    2.76      42.6 +/-    2.76  0.040 / 0.060
G28     345.0          61.8               13.8 +/-    0.59      15.4 +/-    0.59  0.060 / 0.150
G30     100.5          75.0               15.7 +/-    0.66      16.2 +/-    0.66  0.060 / 0.160