PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-16:27:50
G01     125.0          13.4               12.7 +/-    1.66      32.8 +/-    1.66  0.040 / 0.060
G07     59.8           69.3               13.3 +/-    0.57      14.1 +/-    0.57  0.040 / 0.070
G08     49.3           38.8               12.3 +/-    0.62      18.2 +/-    0.62  0.020 / 0.040
G09     177.6          33.0               13.8 +/-    2.28      22.8 +/-    2.28  0.030 / 0.040
G11     116.0          36.6               13.7 +/-    0.93      21.1 +/-    0.93  0.220 / 0.270
G13     320.4          13.7               12.0 +/-    1.57      30.7 +/-    1.57  0.140 / 0.190
G17     201.0          15.6               12.9 +/-    2.08      31.6 +/-    2.08  0.030 / 0.040
G18     101.5          17.9               12.9 +/-    1.30      30.0 +/-    1.30  0.030 / 0.040
G28     280.7          54.3               16.4 +/-    0.95      19.7 +/-    0.95  0.040 / 0.070
G30     336.7          63.0               13.2 +/-    0.64      14.6 +/-    0.64  0.040 / 0.060