PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/09-18:27:50
G01     38.0           11.3                9.0 +/-    1.72      24.4 +/-    1.72  0.090 / 0.180
G02     199.6          13.0               11.1 +/-    1.92      29.0 +/-    1.92  0.100 / 0.210
G06     173.7          44.6               12.6 +/-    0.78      17.1 +/-    0.78  0.040 / 0.070
G13     231.8          18.5               11.7 +/-    2.69      26.7 +/-    2.69  0.040 / 0.080
G15     265.0          10.0                9.9 +/-    1.36      27.6 +/-    1.36  0.100 / 0.390
G17     9.6            66.8                8.5 +/-    0.62       9.2 +/-    0.62  0.070 / 0.360
G19     298.1          71.7                9.8 +/-    0.82      10.3 +/-    0.82  0.130 / 0.290
G24     314.0          24.0                8.0 +/-    2.41      16.0 +/-    2.41  0.200 / 0.520
G28     74.1           48.0               10.2 +/-    0.67      13.1 +/-    0.67  0.030 / 0.040
G30     154.9          18.8               11.0 +/-    0.79      25.0 +/-    0.79  0.040 / 0.050