PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/02-18:27:50
G01     71.2           33.0               10.7 +/-    0.72      17.6 +/-    0.72  0.080 / 0.280
G07     137.3          31.7               13.6 +/-    1.54      23.0 +/-    1.54  0.080 / 0.330
G11     54.2           31.4               10.1 +/-    0.84      17.3 +/-    0.84  0.060 / 0.110
G13     274.9          37.6               13.3 +/-    0.78      20.2 +/-    0.78  0.060 / 0.120
G15     303.7          14.7                7.9 +/-    2.95      19.9 +/-    2.95  0.030 / 0.050
G17     232.1          66.3               14.3 +/-    0.70      15.5 +/-    0.70  0.050 / 0.050
G18     49.4           18.5                8.9 +/-    0.64      20.3 +/-    0.64  0.040 / 0.050
G19     223.9          39.8               17.5 +/-    2.02      25.5 +/-    2.02  0.030 / 0.040
G28     19.2           59.3               11.3 +/-    0.45      13.0 +/-    0.45  0.030 / 0.060
G30     135.2          61.8               15.3 +/-    0.59      17.2 +/-    0.59  0.040 / 0.060