PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-04:28:10
G07     338.6          60.3                5.3 +/-    0.96       6.0 +/-    0.96  0.060 / 0.090
G08     95.3           52.3                6.1 +/-    0.37       7.5 +/-    0.37  0.080 / 0.090
G09     181.6          68.8                8.3 +/-    0.64       8.8 +/-    0.64  0.140 / 0.450
G11     146.0          15.2                6.8 +/-    4.69      16.9 +/-    4.69  0.150 / 0.400
G23     156.3          38.7                6.9 +/-    0.79      10.3 +/-    0.79  0.050 / 0.070
G27     52.8           30.2                4.8 +/-    0.66       8.5 +/-    0.66  0.060 / 0.080
G28     237.0          24.2                9.6 +/-    2.25      19.2 +/-    2.25  0.030 / 0.040
G30     302.4          34.7                6.3 +/-    1.00      10.1 +/-    1.00  0.030 / 0.040