PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-19:57:50
G10     104.9          38.8               10.7 +/-    1.43      15.9 +/-    1.43  0.050 / 0.040
G11     286.8          25.8               11.4 +/-    1.43      21.9 +/-    1.43  0.040 / 0.040
G14     339.1          68.7                9.8 +/-    1.18      10.5 +/-    1.18  0.050 / 0.060
G20     120.4          12.4               11.3 +/-    2.05      29.8 +/-    2.05  0.070 / 0.050
G22     309.4          23.4               10.0 +/-    2.50      20.2 +/-    2.50  0.120 / 0.170
G25     84.0           15.7               11.3 +/-    0.99      27.6 +/-    0.99  0.090 / 0.170
G31     167.0          63.3               13.1 +/-    1.46      14.5 +/-    1.46  0.090 / 0.310
G32     36.3           52.3                9.3 +/-    0.79      11.5 +/-    0.79  0.070 / 0.300