PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-15:58:10
G07     31.0           69.5               13.2 +/-    0.85      14.0 +/-    0.85  0.040 / 0.060
G08     57.4           45.7               10.9 +/-    0.43      14.6 +/-    0.43  0.040 / 0.080
G09     178.6          42.9               16.0 +/-    1.42      22.2 +/-    1.42  0.030 / 0.030
G11     125.6          31.1               13.5 +/-    1.26      23.1 +/-    1.26  0.030 / 0.060
G18     110.0          13.2               10.8 +/-    2.28      28.1 +/-    2.28  0.150 / 0.290
G23     159.3          11.1               11.7 +/-    1.17      32.0 +/-    1.17  0.190 / 0.320
G27     38.5           12.4                8.9 +/-    2.06      23.6 +/-    2.06  0.040 / 0.050
G28     266.6          49.2               14.7 +/-    0.72      18.7 +/-    0.72  0.040 / 0.040
G30     326.1          55.3               12.6 +/-    0.48      15.0 +/-    0.48  0.060 / 0.090