PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-00:57:40
G10     300.1          53.3               10.4 +/-    1.70      12.6 +/-    1.70  0.040 / 0.040
G14     210.2          11.6                0.3 +/-   26.30       0.8 +/-   26.30  0.040 / 0.040
G15     45.9           26.9                7.9 +/-    1.66      14.8 +/-    1.66  0.140 / 0.530
G20     353.3          65.2               10.7 +/-    0.46      11.7 +/-    0.46  0.110 / 0.610
G21     97.1           74.2               12.3 +/-    0.58      12.8 +/-    0.58  0.080 / 0.080
G24     97.6           26.9               11.9 +/-    1.22      22.2 +/-    1.22  0.070 / 0.070
G27     300.5          34.3                9.8 +/-    1.31      15.7 +/-    1.31  0.130 / 0.180
G32     210.7          31.6               13.1 +/-    1.31      22.3 +/-    1.31  0.140 / 0.160