PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-22:12:40
G03     217.1          60.3                8.1 +/-    1.51       9.2 +/-    1.51  0.070 / 0.080
G07     255.9          14.8                7.3 +/-    4.03      18.3 +/-    4.03  0.060 / 0.080
G09     311.6          32.2                6.6 +/-    1.23      11.0 +/-    1.23  0.210 / 0.560
G14     107.0          10.3                9.2 +/-    1.75      25.4 +/-    1.75  0.200 / 0.520
G16     95.6           62.8                9.3 +/-    1.26      10.3 +/-    1.26  0.050 / 0.050
G22     191.0          43.5                8.3 +/-    1.01      11.5 +/-    1.01  0.040 / 0.050
G23     328.3          58.3              -16.1 +/-    0.67     -18.6 +/-    0.67  0.060 / 0.050
G26     55.3           44.3                6.6 +/-    0.69       9.0 +/-    0.69  0.060 / 0.050
G31     58.6           11.3                5.9 +/-    1.07      15.9 +/-    1.07  0.040 / 0.050