PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-16:12:30
G02     58.3           33.7                8.9 +/-    1.64      14.5 +/-    1.64  0.130 / 0.360
G05     61.1           64.1               10.3 +/-    0.57      11.3 +/-    0.57  0.160 / 0.320
G12     183.3          32.7               11.8 +/-    1.72      19.6 +/-    1.72  0.040 / 0.080
G13     127.1          14.5               14.9 +/-    2.18      37.6 +/-    2.18  0.050 / 0.100
G15     163.9          12.2               16.9 +/-    5.36      44.9 +/-    5.36  0.160 / 0.280
G21     271.0          16.2               10.8 +/-    2.47      26.0 +/-    2.47  0.160 / 0.410
G25     238.9          52.6               12.3 +/-    3.60      15.0 +/-    3.60  0.310 / 0.510
G29     327.8          53.2               10.3 +/-    0.56      12.5 +/-    0.56  0.270 / 0.310