PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/23-15:43:10
G01     50.0           25.4               11.0 +/-    1.02      21.3 +/-    1.02  0.040 / 0.070
G06     176.3          26.6               11.7 +/-    2.00      22.1 +/-    2.00  0.040 / 0.070
G07     146.3          12.4               10.9 +/-    2.57      28.7 +/-    2.57  0.070 / 0.140
G11     44.5           14.4                8.7 +/-    2.93      21.8 +/-    2.93  0.070 / 0.130
G13     250.2          30.4               11.3 +/-    1.08      19.6 +/-    1.08  0.210 / 0.440
G15     286.3          14.9                7.8 +/-    1.38      19.5 +/-    1.38  0.170 / 0.410
G17     315.8          78.6               11.6 +/-    0.57      11.8 +/-    0.57  0.040 / 0.070
G19     244.9          56.9               12.2 +/-    0.93      14.3 +/-    0.93  0.040 / 0.060
G28     52.4           52.9               10.7 +/-    0.40      13.1 +/-    0.40  0.080 / 0.340
G30     150.1          42.3               12.1 +/-    0.96      17.0 +/-    0.96  0.070 / 0.340