PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/28-19:58:00
G01     291.3          39.9               10.7 +/-    7.57      15.6 +/-    7.57  0.050 / 0.080
G03     311.9          17.2                8.7 +/-    1.61      20.4 +/-    1.61  0.060 / 0.080
G10     119.4          29.6               12.9 +/-    1.73      22.7 +/-    1.73  0.030 / 0.030
G11     266.7          26.2                9.8 +/-    1.39      18.7 +/-    1.39  0.020 / 0.020
G14     23.4           59.1                9.8 +/-    0.57      11.2 +/-    0.57  0.110 / 0.130
G22     313.6          37.7                8.3 +/-    1.29      12.5 +/-    1.29  0.070 / 0.140
G25     67.2           18.9                8.4 +/-    1.72      18.9 +/-    1.72  0.050 / 0.050
G26     157.9          12.4               14.2 +/-    6.99      37.6 +/-    6.99  0.050 / 0.040
G31     138.0          78.6               11.5 +/-    0.48      11.7 +/-    0.48  0.040 / 0.050
G32     50.3           42.7                8.4 +/-    1.59      11.7 +/-    1.59  0.040 / 0.050