PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-16:58:00
G03     197.6          42.8                8.8 +/-    0.75      12.2 +/-    0.75  0.080 / 0.190
G07     269.9          27.9                8.8 +/-    1.62      16.1 +/-    1.62  0.080 / 0.110
G09     315.8          38.5                7.1 +/-    1.41      10.6 +/-    1.41  0.050 / 0.070
G16     72.5           64.1                8.7 +/-    0.36       9.6 +/-    0.36  0.080 / 0.070
G22     182.1          25.6                9.9 +/-    1.55      19.0 +/-    1.55  0.050 / 0.070
G23     343.5          70.9                7.6 +/-    0.80       8.0 +/-    0.80  0.070 / 0.070
G26     47.2           36.0                7.3 +/-    0.96      11.4 +/-    0.96  0.090 / 0.140
G27     126.1          18.8                9.4 +/-    1.83      21.3 +/-    1.83  0.110 / 0.180