PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/02-21:57:50
G01     223.1          16.2                9.9 +/-    1.67      23.9 +/-    1.67  0.050 / 0.060
G03     289.1          67.2                8.4 +/-    0.63       9.0 +/-    0.63  0.040 / 0.050
G09     295.4          11.7                8.7 +/-    2.10      23.3 +/-    2.10  0.090 / 0.230
G14     84.4           27.8                7.6 +/-    0.85      14.0 +/-    0.85  0.090 / 0.210
G16     143.3          45.7               12.5 +/-    1.29      16.7 +/-    1.29  0.070 / 0.090
G22     219.6          70.1               10.0 +/-    1.18      10.6 +/-    1.18  0.040 / 0.110
G23     307.6          37.5                8.0 +/-    1.00      12.2 +/-    1.00  0.040 / 0.030
G26     96.6           54.2                9.6 +/-    0.92      11.5 +/-    0.92  0.030 / 0.040
G31     45.7           31.8                7.4 +/-    0.69      12.4 +/-    0.69  0.060 / 0.100