PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/04-22:12:30
G03     257.6          69.9                6.9 +/-    0.30       7.3 +/-    0.30  0.040 / 0.040
G09     302.0          19.0                7.0 +/-    1.00      15.8 +/-    1.00  0.040 / 0.050
G14     93.6           21.3                7.1 +/-    2.51      15.1 +/-    2.51  0.130 / 0.300
G16     130.7          54.9                9.1 +/-    0.54      10.9 +/-    0.54  0.140 / 0.250
G22     202.3          60.7                7.7 +/-    0.34       8.7 +/-    0.34  0.030 / 0.040
G23     315.3          45.1                6.6 +/-    0.88       8.9 +/-    0.88  0.040 / 0.030
G26     77.3           53.3                5.4 +/-    0.93       6.6 +/-    0.93  0.030 / 0.050
G31     50.1           23.3                5.6 +/-    2.62      11.5 +/-    2.62  0.040 / 0.040