PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-17:27:50
G02     58.1           34.3                9.4 +/-    0.80      15.1 +/-    0.80  0.130 / 0.550
G05     59.3           62.8               11.5 +/-    0.82      12.7 +/-    0.82  0.120 / 0.420
G12     183.7          32.6               13.7 +/-    2.06      22.7 +/-    2.06  0.050 / 0.070
G13     126.6          14.9               14.6 +/-    2.44      36.4 +/-    2.44  0.040 / 0.080
G15     164.7          12.0               14.4 +/-    2.64      38.4 +/-    2.64  0.150 / 0.360
G21     271.4          16.4               12.6 +/-    1.51      30.2 +/-    1.51  0.150 / 0.340
G25     238.1          52.2               10.7 +/-    1.41      13.2 +/-    1.41  0.130 / 0.260
G29     328.4          54.0                7.5 +/-    1.00       9.1 +/-    1.00  0.160 / 0.200