PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-18:12:50
G01     75.0           33.3               12.5 +/-    0.40      20.5 +/-    0.40  0.070 / 0.220
G07     135.3          34.5               13.7 +/-    1.28      22.0 +/-    1.28  0.090 / 0.190
G11     56.6           33.4               11.1 +/-    0.53      18.2 +/-    0.53  0.050 / 0.080
G13     279.0          37.8               13.8 +/-    0.80      20.9 +/-    0.80  0.030 / 0.090
G15     306.4          13.9               11.0 +/-    2.52      28.1 +/-    2.52  0.030 / 0.040
G17     227.4          63.5               14.4 +/-    0.82      15.9 +/-    0.82  0.030 / 0.060
G18     52.0           20.0               11.1 +/-    0.72      24.4 +/-    0.72  0.040 / 0.040
G19     221.7          36.9               14.7 +/-    1.78      22.6 +/-    1.78  0.040 / 0.040
G28     13.5           60.0               11.4 +/-    0.52      12.9 +/-    0.52  0.050 / 0.060
G30     131.4          64.9               13.2 +/-    0.59      14.4 +/-    0.59  0.040 / 0.060