PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/16-01:42:40
G02     270.8          81.2                9.9 +/-    0.69      10.0 +/-    0.69  0.040 / 0.010
G05     168.4          22.3               14.1 +/-    5.34      29.4 +/-    5.34  0.040 / 0.010
G06     39.9           52.7                8.9 +/-    0.67      10.9 +/-    0.67  0.130 / 0.110
G12     320.9          57.6                9.5 +/-    0.30      11.0 +/-    0.30  0.090 / 0.070
G17     73.7           22.8                8.2 +/-    1.51      16.9 +/-    1.51  0.120 / 0.050
G19     62.5           35.7               10.0 +/-    0.96      15.7 +/-    0.96  0.120 / 0.060
G24     239.5          31.3               10.9 +/-    1.47      18.5 +/-    1.47  0.050 / 0.030
G25     317.5          16.5                6.6 +/-    1.65      15.9 +/-    1.65  0.040 / 0.010