PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-14:27:40
G03     190.2          25.2                6.6 +/-    2.26      12.9 +/-    2.26  0.190 / 0.280
G07     287.3          39.1                8.8 +/-    0.66      13.0 +/-    0.66  0.180 / 0.300
G08     146.1          22.0               10.5 +/-    1.69      21.9 +/-    1.69  0.100 / 0.160
G09     320.2          54.3                9.8 +/-    0.79      11.8 +/-    0.79  0.090 / 0.150
G16     47.0           48.0                7.6 +/-    0.56       9.9 +/-    0.56  0.070 / 0.080
G22     177.6          10.2                8.9 +/-    2.64      24.8 +/-    2.64  0.050 / 0.080
G23     71.4           82.8                8.7 +/-    0.76       8.7 +/-    0.76  0.060 / 0.100
G26     43.5           19.1                7.4 +/-    1.28      16.7 +/-    1.28  0.060 / 0.100
G27     109.5          30.0               10.2 +/-    0.95      17.8 +/-    0.95  0.030 / 0.040
G30     269.3          10.4              -10.8 +/-   31.76     -29.8 +/-   31.76  0.030 / 0.040