PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-07:12:40
G01     77.0           32.3                6.1 +/-    0.95      10.2 +/-    0.95  0.040 / 0.040
G07     132.6          36.7                7.6 +/-    0.60      11.7 +/-    0.60  0.040 / 0.030
G11     60.5           38.0                6.0 +/-    0.30       9.0 +/-    0.30  0.060 / 0.070
G13     282.1          39.0                6.1 +/-    0.91       9.0 +/-    0.91  0.060 / 0.080
G15     307.2          14.2                1.3 +/-    2.14       3.3 +/-    2.14  0.050 / 0.090
G17     221.4          62.1                8.2 +/-    0.66       9.2 +/-    0.66  0.050 / 0.100
G19     218.3          37.8                6.2 +/-    1.56       9.4 +/-    1.56  0.070 / 0.130
G28     349.6          61.5                5.6 +/-    0.85       6.3 +/-    0.85  0.070 / 0.090
G30     125.6          71.8                9.1 +/-    1.32       9.5 +/-    1.32  0.040 / 0.060