PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-21:27:40
G10     250.7          27.0               11.7 +/-    1.38      21.9 +/-    1.38  0.160 / 0.250
G13     53.2           29.6                8.9 +/-    2.00      15.8 +/-    2.00  0.150 / 0.260
G15     93.2           59.6               10.0 +/-    1.12      11.4 +/-    1.12  0.050 / 0.040
G16     293.6          16.1                9.6 +/-    1.65      23.2 +/-    1.65  0.040 / 0.050
G20     252.1          12.3               12.1 +/-    2.93      32.1 +/-    2.93  0.030 / 0.050
G21     332.3          59.5                9.0 +/-    0.52      10.3 +/-    0.52  0.030 / 0.040
G26     266.0          15.7               11.3 +/-    2.01      27.8 +/-    2.01  0.070 / 0.210
G29     165.3          51.1               12.1 +/-    0.48      15.0 +/-    0.48  0.130 / 0.120