PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-05:42:30
G10     290.6          50.1                4.6 +/-    3.07       5.8 +/-    3.07  0.130 / 0.100
G15     47.0           31.7                3.0 +/-    1.08       5.0 +/-    1.08  0.100 / 0.110
G20     339.6          65.2                3.8 +/-    0.36       4.1 +/-    0.36  0.040 / 0.030
G21     78.6           75.7                4.2 +/-    0.31       4.3 +/-    0.31  0.040 / 0.040
G24     102.8          24.2                5.4 +/-    1.61      10.7 +/-    1.61  0.070 / 0.090
G27     307.2          30.7                4.6 +/-    1.01       8.0 +/-    1.01  0.070 / 0.120
G32     209.1          22.9                4.9 +/-    1.03      10.0 +/-    1.03  0.080 / 0.140