PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-21:28:10
G08     317.2          13.9                7.2 +/-    2.36      18.3 +/-    2.36  0.040 / 0.040
G10     322.1          58.6               10.4 +/-    0.77      12.0 +/-    0.77  0.040 / 0.040
G14     214.6          21.8               14.4 +/-    2.54      30.4 +/-    2.54  0.110 / 0.170
G15     45.9           16.4                8.2 +/-    3.81      19.8 +/-    3.81  0.100 / 0.240
G20     26.0           62.3               11.8 +/-    2.01      13.1 +/-    2.01  0.170 / 0.220
G21     125.7          64.4               12.2 +/-    0.99      13.4 +/-    0.99  0.130 / 0.160
G24     83.7           30.3               10.8 +/-    0.61      18.8 +/-    0.61  0.060 / 0.060
G27     284.5          38.0                9.3 +/-    2.44      14.0 +/-    2.44  0.040 / 0.060
G32     217.1          45.9               13.5 +/-    1.03      18.0 +/-    1.03  0.060 / 0.090