PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/17-01:57:30
G08     313.6          16.3                6.3 +/-    1.28      15.2 +/-    1.28  0.040 / 0.050
G10     331.1          60.0                8.5 +/-    0.36       9.7 +/-    0.36  0.040 / 0.040
G14     216.6          28.3               12.0 +/-    1.06      21.9 +/-    1.06  0.060 / 0.060
G15     46.6           11.5                6.5 +/-    3.47      17.6 +/-    3.47  0.060 / 0.070
G20     33.1           61.3                8.9 +/-    0.52      10.0 +/-    0.52  0.030 / 0.030
G21     132.2          59.6               12.2 +/-    0.37      13.9 +/-    0.37  0.030 / 0.020
G24     76.8           30.3                9.5 +/-    1.09      16.5 +/-    1.09  0.200 / 0.260
G27     278.4          37.8                9.6 +/-    0.98      14.5 +/-    0.98  0.130 / 0.210
G32     221.1          49.0               11.7 +/-    1.97      15.0 +/-    1.97  0.240 / 0.270