PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-15:27:40
G02     23.8           63.3               11.0 +/-    1.19      12.1 +/-    1.19  0.040 / 0.050
G05     156.4          51.4               15.7 +/-    1.00      19.5 +/-    1.00  0.030 / 0.050
G06     48.5           25.3                9.2 +/-    0.70      17.8 +/-    0.70  0.030 / 0.040
G12     227.1          77.2               11.6 +/-    0.68      11.9 +/-    0.68  0.020 / 0.040
G19     93.2           14.1               13.1 +/-    0.85      33.2 +/-    0.85  0.070 / 0.250
G20     197.9          16.7               14.9 +/-    2.01      35.6 +/-    2.01  0.080 / 0.230
G25     307.0          48.3               13.6 +/-    1.43      17.5 +/-    1.43  0.070 / 0.120
G29     302.9          25.6               11.2 +/-    1.90      21.6 +/-    1.90  0.050 / 0.100