PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/28-00:42:40
G10     307.0          55.3               11.0 +/-    1.03      13.1 +/-    1.03  0.060 / 0.080
G14     211.4          15.4               15.7 +/-    2.01      38.6 +/-    2.01  0.060 / 0.080
G15     45.6           23.3                7.0 +/-    1.99      14.3 +/-    1.99  0.040 / 0.040
G20     3.8            64.7               11.0 +/-    0.70      12.1 +/-    0.70  0.040 / 0.040
G21     109.3          71.4               12.3 +/-    0.47      12.9 +/-    0.47  0.160 / 0.470
G24     92.9           28.4               10.5 +/-    1.05      19.1 +/-    1.05  0.220 / 0.360
G27     295.5          36.0               11.7 +/-    2.23      18.3 +/-    2.23  0.150 / 0.180
G32     212.6          36.0               14.9 +/-    2.10      23.2 +/-    2.10  0.070 / 0.170