PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-21:27:40
G01     315.0          25.1                9.8 +/-    2.83      19.0 +/-    2.83  0.140 / 0.230
G10     92.3           48.5               11.0 +/-    1.32      14.1 +/-    1.32  0.240 / 0.340
G11     294.4          26.7                9.9 +/-    2.16      18.6 +/-    2.16  0.080 / 0.180
G14     328.3          70.8               10.5 +/-    0.69      11.0 +/-    0.69  0.130 / 0.200
G18     109.6          21.6               12.4 +/-    1.90      26.3 +/-    1.90  0.130 / 0.220
G22     304.7          16.2                8.6 +/-    1.78      20.7 +/-    1.78  0.160 / 0.240
G25     92.3           12.5               12.8 +/-    2.18      33.7 +/-    2.18  0.030 / 0.050
G31     176.7          49.7               14.2 +/-    0.63      18.0 +/-    0.63  0.030 / 0.050
G32     19.5           62.0               10.3 +/-    0.85      11.5 +/-    0.85  0.040 / 0.030