PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-21:58:00
G03     238.6          68.0               10.9 +/-    0.83      11.7 +/-    0.83  0.040 / 0.060
G09     305.8          23.9                7.1 +/-    1.23      14.2 +/-    1.23  0.050 / 0.060
G14     98.8           17.2                8.4 +/-    2.21      19.9 +/-    2.21  0.120 / 0.470
G16     120.0          59.2                9.7 +/-    0.56      11.1 +/-    0.56  0.130 / 0.470
G22     196.7          54.4               10.2 +/-    1.99      12.3 +/-    1.99  0.040 / 0.060
G23     319.9          49.7                7.9 +/-    0.78      10.0 +/-    0.78  0.040 / 0.060
G26     67.6           50.9                6.5 +/-    0.63       8.1 +/-    0.63  0.030 / 0.040
G31     53.0           18.8                5.8 +/-    1.08      13.2 +/-    1.08  0.030 / 0.040