PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-02:58:10
G01     80.6           33.2                3.6 +/-    0.91       5.9 +/-    0.91  0.040 / 0.040
G07     132.1          38.4                7.1 +/-    0.60      10.7 +/-    0.60  0.050 / 0.040
G11     62.0           37.1                4.1 +/-    1.00       6.2 +/-    1.00  0.100 / 0.200
G13     286.0          37.1                5.0 +/-    1.25       7.7 +/-    1.25  0.120 / 0.160
G15     308.8          13.7                3.3 +/-    2.31       8.4 +/-    2.31  0.080 / 0.040
G17     222.1          61.0                6.9 +/-    1.47       7.7 +/-    1.47  0.040 / 0.050
G19     218.8          35.2                8.7 +/-    1.50      13.7 +/-    1.50  0.050 / 0.080
G28     6.2            60.7                3.1 +/-    0.83       3.5 +/-    0.83  0.060 / 0.070
G30     125.2          65.7                5.2 +/-    0.50       5.7 +/-    0.50  0.040 / 0.050