PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/15-19:12:50
G01     273.7          41.1               10.4 +/-    2.53      14.8 +/-    2.53  0.080 / 0.060
G03     315.6          28.9                8.0 +/-    1.34      14.4 +/-    1.34  0.070 / 0.060
G10     128.6          19.1               11.2 +/-    1.75      25.3 +/-    1.75  0.030 / 0.020
G11     254.1          21.5                9.5 +/-    4.24      20.2 +/-    4.24  0.030 / 0.030
G14     40.3           51.7                8.7 +/-    0.52      10.8 +/-    0.52  0.110 / 0.210
G22     314.4          50.0                8.4 +/-    1.02      10.6 +/-    1.02  0.130 / 0.150
G25     54.5           17.5                8.3 +/-    5.26      19.4 +/-    5.26  0.040 / 0.060
G26     149.7          23.1               12.1 +/-    1.43      24.7 +/-    1.43  0.050 / 0.060
G31     61.2           76.3                8.8 +/-    0.41       9.1 +/-    0.41  0.060 / 0.070
G32     62.4           33.8                8.6 +/-    1.24      13.9 +/-    1.24  0.060 / 0.070