PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/23-00:28:00
G01     43.5           19.4               11.7 +/-    2.36      26.1 +/-    2.36  0.080 / 0.290
G06     176.5          34.2               18.5 +/-    1.80      29.8 +/-    1.80  0.180 / 0.260
G13     241.9          24.7               17.6 +/-    1.74      34.6 +/-    1.74  0.040 / 0.050
G15     274.2          13.7               14.5 +/-    1.16      37.2 +/-    1.16  0.040 / 0.050
G17     339.6          74.7               13.7 +/-    0.47      14.1 +/-    0.47  0.020 / 0.030
G19     266.0          66.6               14.1 +/-    0.94      15.2 +/-    0.94  0.030 / 0.020
G24     317.9          15.5                9.6 +/-    2.86      23.5 +/-    2.86  0.060 / 0.030
G28     66.7           48.4               13.4 +/-    1.39      17.2 +/-    1.39  0.040 / 0.040
G30     152.6          29.1               19.3 +/-    1.94      34.5 +/-    1.94  0.060 / 0.090