PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-01:58:00
G02     59.1           32.8               10.9 +/-    0.69      18.1 +/-    0.69  0.110 / 0.480
G05     58.7           60.8               11.9 +/-    0.67      13.5 +/-    0.67  0.170 / 0.600
G12     184.6          33.3               15.0 +/-    1.36      24.6 +/-    1.36  0.080 / 0.090
G13     129.2          14.4               15.4 +/-    2.40      38.9 +/-    2.40  0.060 / 0.110
G15     164.5          11.2               12.0 +/-   24.41      32.5 +/-   24.41  0.030 / 0.040
G20     218.3          11.7               16.7 +/-    3.62      44.9 +/-    3.62  0.030 / 0.040
G21     270.2          16.2               15.0 +/-    3.25      36.3 +/-    3.25  0.050 / 0.090
G25     239.6          52.7               13.0 +/-    1.50      15.9 +/-    1.50  0.060 / 0.090
G29     327.0          52.6               10.3 +/-    1.37      12.6 +/-    1.37  0.040 / 0.070