PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-23:43:10
G10     297.2          52.5                9.7 +/-    1.27      11.9 +/-    1.27  0.060 / 0.080
G15     46.3           29.1                6.7 +/-    0.70      12.0 +/-    0.70  0.060 / 0.080
G20     349.5          65.2                8.1 +/-    0.86       8.8 +/-    0.86  0.050 / 0.050
G21     89.7           75.4               11.2 +/-    0.61      11.5 +/-    0.61  0.040 / 0.040
G24     100.0          26.2               11.3 +/-    0.56      21.6 +/-    0.56  0.070 / 0.130
G27     302.5          33.5               11.4 +/-    1.26      18.5 +/-    1.26  0.070 / 0.170
G32     209.8          30.1               12.7 +/-    1.34      22.2 +/-    1.34  0.040 / 0.040