PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/13-00:28:00
G02     357.7          76.0                9.9 +/-    0.84      10.2 +/-    0.84  0.040 / 0.040
G05     161.5          37.6               14.4 +/-    1.02      21.9 +/-    1.02  0.040 / 0.040
G06     42.7           36.7                9.3 +/-    0.95      14.3 +/-    0.95  0.040 / 0.070
G12     304.4          74.7                9.9 +/-    0.61      10.2 +/-    0.61  0.050 / 0.080
G17     87.5           12.3               12.1 +/-    1.11      32.2 +/-    1.11  0.040 / 0.040
G19     77.3           26.5               11.5 +/-    1.36      21.7 +/-    1.36  0.040 / 0.040
G24     225.8          20.4               14.7 +/-    1.74      31.9 +/-    1.74  0.080 / 0.090
G25     316.8          31.1               10.5 +/-    1.70      18.0 +/-    1.70  0.070 / 0.120