PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-16:58:00
G01     49.9           25.4               15.4 +/-    1.21      29.8 +/-    1.21  0.050 / 0.070
G06     176.5          26.6               14.7 +/-    1.93      27.7 +/-    1.93  0.040 / 0.070
G07     146.4          12.4               14.0 +/-    3.72      36.9 +/-    3.72  0.060 / 0.140
G11     44.5           14.7               14.2 +/-    1.80      35.7 +/-    1.80  0.070 / 0.130
G13     250.1          30.3               14.3 +/-    1.00      24.9 +/-    1.00  0.190 / 0.410
G15     285.5          15.1               11.0 +/-    1.94      27.3 +/-    1.94  0.150 / 0.280
G17     311.8          78.4               15.1 +/-    0.42      15.4 +/-    0.42  0.080 / 0.330
G19     245.5          57.4               16.0 +/-    0.67      18.6 +/-    0.67  0.070 / 0.330
G28     52.8           52.8               13.8 +/-    0.38      16.8 +/-    0.38  0.040 / 0.060
G30     150.0          41.7               16.2 +/-    0.91      22.9 +/-    0.91  0.040 / 0.070