PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-16:57:50
G03     205.3          54.4                8.6 +/-    0.96      10.4 +/-    0.96  0.080 / 0.200
G07     260.3          21.0                9.0 +/-    3.86      19.4 +/-    3.86  0.160 / 0.370
G09     311.1          29.2                6.7 +/-    2.42      11.9 +/-    2.42  0.060 / 0.100
G16     104.3          66.2                7.4 +/-    1.01       8.0 +/-    1.01  0.080 / 0.240
G22     185.3          36.9                9.0 +/-    0.76      13.8 +/-    0.76  0.030 / 0.040
G23     330.9          60.9                7.4 +/-    0.49       8.4 +/-    0.49  0.040 / 0.030
G26     54.6           45.4                7.8 +/-    0.98      10.5 +/-    0.98  0.070 / 0.110
G27     134.6          11.2               13.4 +/-    5.76      36.4 +/-    5.76  0.080 / 0.130
G31     60.1           10.5                8.9 +/-    1.19      24.6 +/-    1.19  0.060 / 0.070