PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-21:58:10
G10     254.9          30.3               11.3 +/-    1.99      19.7 +/-    1.99  0.040 / 0.040
G13     49.3           26.7                8.7 +/-    2.40      16.4 +/-    2.40  0.040 / 0.040
G15     82.7           58.7               10.2 +/-    0.74      11.7 +/-    0.74  0.120 / 0.500
G16     289.0          15.6                8.5 +/-    1.80      20.8 +/-    1.80  0.180 / 0.500
G20     256.4          18.0                5.3 +/-    3.05      12.3 +/-    3.05  0.060 / 0.160
G21     338.4          62.8               10.6 +/-    0.86      11.8 +/-    0.86  0.100 / 0.170
G26     261.6          13.6               10.1 +/-    3.26      26.0 +/-    3.26  0.040 / 0.040
G29     166.4          45.7               12.4 +/-    1.17      16.6 +/-    1.17  0.030 / 0.030