PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-13:27:50
G07     32.3           69.5                8.8 +/-    0.95       9.3 +/-    0.95  0.040 / 0.060
G08     56.0           44.1                7.5 +/-    0.75      10.3 +/-    0.75  0.040 / 0.060
G09     177.6          41.7               10.7 +/-    0.85      15.2 +/-    0.85  0.120 / 0.120
G11     124.4          31.4                8.9 +/-    1.29      15.1 +/-    1.29  0.110 / 0.150
G18     109.4          13.3                8.7 +/-    2.86      22.4 +/-    2.86  0.080 / 0.140
G23     160.1          12.6                7.9 +/-    5.20      20.9 +/-    5.20  0.090 / 0.140
G27     38.5           12.5                6.9 +/-    2.51      18.1 +/-    2.51  0.020 / 0.040
G28     266.5          49.1                7.6 +/-    1.18       9.7 +/-    1.18  0.030 / 0.040
G30     325.2          54.6                7.4 +/-    0.85       8.8 +/-    0.85  0.040 / 0.060