PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-15:43:10
G10     247.8          24.8               10.0 +/-    1.34      19.5 +/-    1.34  0.150 / 0.370
G13     56.5           31.3                7.6 +/-    1.50      13.0 +/-    1.50  0.110 / 0.410
G15     97.1           58.7                9.7 +/-    1.02      11.1 +/-    1.02  0.060 / 0.040
G16     299.9          15.2                5.0 +/-    2.43      12.4 +/-    2.43  0.040 / 0.040
G20     265.6          48.7                9.6 +/-    4.05      12.3 +/-    4.05  0.030 / 0.030
G21     333.1          59.5                6.9 +/-    0.68       7.9 +/-    0.68  0.040 / 0.030
G26     273.0          16.5                8.4 +/-    1.79      20.0 +/-    1.79  0.060 / 0.100
G29     162.6          52.8               11.3 +/-    0.64      13.8 +/-    0.64  0.070 / 0.140