PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/13-01:57:50
G08     318.8          12.5                7.3 +/-    3.78      19.4 +/-    3.78  0.050 / 0.060
G10     317.4          57.6                7.8 +/-    1.00       9.0 +/-    1.00  0.050 / 0.070
G14     213.4          21.5                9.6 +/-    1.61      20.4 +/-    1.61  0.030 / 0.030
G15     45.7           17.6                7.9 +/-    3.44      18.5 +/-    3.44  0.030 / 0.030
G20     17.8           63.5                9.7 +/-    0.96      10.7 +/-    0.96  0.040 / 0.040
G21     122.0          66.3               11.0 +/-    0.64      11.9 +/-    0.64  0.040 / 0.050
G24     85.5           29.7               11.5 +/-    1.86      20.3 +/-    1.86  0.140 / 0.200
G27     288.1          37.4                9.5 +/-    1.29      14.5 +/-    1.29  0.120 / 0.200
G32     216.0          41.6               10.2 +/-    1.05      14.4 +/-    1.05  0.080 / 0.180