PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-05:28:00
G01     125.6          11.0               -7.1 +/-   35.47     -19.4 +/-   35.47  0.040 / 0.040
G07     52.6           69.4                4.8 +/-    0.29       5.1 +/-    0.29  0.040 / 0.050
G08     51.5           40.6                5.1 +/-    0.69       7.3 +/-    0.69  0.030 / 0.040
G09     176.0          35.0                8.8 +/-    1.72      14.0 +/-    1.72  0.030 / 0.040
G11     122.2          35.8                6.7 +/-    0.94      10.5 +/-    0.94  0.060 / 0.120
G13     320.8          12.3                1.1 +/-    2.29       3.0 +/-    2.29  0.070 / 0.120
G17     199.4          13.4                4.0 +/-    2.36      10.3 +/-    2.36  0.120 / 0.390
G28     267.1          45.9                4.5 +/-    1.00       6.0 +/-    1.00  0.130 / 0.340
G30     328.0          57.6                3.8 +/-    0.57       4.4 +/-    0.57  0.070 / 0.080