PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-03:12:30
G08     297.6          21.8               11.6 +/-    1.51      24.5 +/-    1.51  0.070 / 0.090
G10     7.3            62.7                7.5 +/-    1.56       8.4 +/-    1.56  0.050 / 0.110
G14     227.8          44.6               14.6 +/-    2.63      19.8 +/-    2.63  0.030 / 0.030
G20     62.8           53.3                9.4 +/-    0.95      11.4 +/-    0.95  0.030 / 0.020
G21     146.0          42.6               12.7 +/-    0.61      17.8 +/-    0.61  0.050 / 0.060
G24     57.9           26.4                8.1 +/-    1.26      15.3 +/-    1.26  0.040 / 0.080
G27     257.0          32.8               11.1 +/-    3.40      18.4 +/-    3.40  0.110 / 0.100
G32     241.0          64.8               11.1 +/-    0.57      12.1 +/-    0.57  0.140 / 0.120