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                9.4 +/-    3.28      22.6 +/-    3.28  0.040 / 0.040
G03     289.1          67.2                8.5 +/-    0.84       9.2 +/-    0.84  0.040 / 0.030
G09     295.4          11.7                1.8 +/-   25.54       4.8 +/-   25.54  0.090 / 0.150
G14     84.4           27.8                9.6 +/-    1.54      17.6 +/-    1.54  0.090 / 0.200
G16     143.3          45.7               10.7 +/-    1.48      14.3 +/-    1.48  0.030 / 0.030
G22     219.6          70.1              -16.8 +/-    0.58     -17.8 +/-    0.58  0.030 / 0.030
G23     307.6          37.5                7.9 +/-    1.61      12.0 +/-    1.61  0.040 / 0.070
G26     96.6           54.2                7.8 +/-    1.70       9.4 +/-    1.70  0.040 / 0.070
G31     45.7           31.8                7.2 +/-    1.20      12.2 +/-    1.20  0.050 / 0.090